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Document And Entity Information - USD ($) $ in Millions	12 Months Ended
Document And Entity Information - USD ($) $ in Millions	Mar. 31, 2012	May 24, 2012	Sep. 30, 2011
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Trading Symbol	exp
Entity Registrant Name	EAGLE MATERIALS INC
Entity Central Index Key	0000918646
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		45,280,886
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 706.1
Entity Current Reporting Status	Yes

Consolidated Statements Of Earnings - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Consolidated Statements Of Earnings [Abstract]
Revenues	$ 495,023	$ 462,180	$ 467,905
Cost of Goods Sold	454,546	426,603	416,032
Gross Profit	40,477	35,577	51,873
Equity in Earnings of Unconsolidated Joint Venture	28,528	24,233	24,157
Corporate General and Administrative Expense	(19,617)	(16,667)	(15,886)
Other Operating Income	356	840	3,161
Other Non-Operating Expense	(9,117)	(10,701)	(2,548)
Loss on Debt Retirement	(2,094)
Interest Expense, Net	(16,621)	(16,520)	(21,460)
Earnings before Income Taxes	21,912	16,762	39,297
Income Taxes	(3,180)	(1,913)	(10,347)
Net Earnings	$ 18,732	$ 14,849	$ 28,950
EARNINGS PER SHARE
Basic	$ 0.42	$ 0.34	$ 0.66
Diluted	$ 0.42	$ 0.34	$ 0.66
AVERAGE SHARES OUTSTANDING
Basic	44,224,924	43,891,817	43,684,942
Diluted	44,515,981	44,251,276	44,038,401
CASH DIVIDENDS PER SHARE	$ 0.40	$ 0.40	$ 0.40

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Current Assets -
Cash and Cash Equivalents	$ 6,481	$ 1,874
Accounts and Notes Receivable, net	56,197	43,855
Inventories	123,606	115,237
Income Tax Receivable	1,133	9,088
Prepaid and Other Assets	4,424	4,572
Total Current Assets	191,841	174,626
Property, Plant and Equipment -	1,140,744	1,115,058
Less: Accumulated Depreciation	(560,236)	(512,228)
Property, Plant and Equipment, net	580,508	602,830
Notes Receivable	3,436	5,326
Investment in Joint Venture	38,939	33,661
Goodwill and Intangible Assets, net	150,902	151,539
Other Assets	19,519	17,828
Assets, Total	985,145	985,810
Current Liabilities -
Accounts Payable	38,747	30,339
Accrued Liabilities	33,619	39,187
Current Portion of Long-term Debt	4,677
Total Current Liabilities	77,043	69,526
Long-term Debt	262,259	287,000
Other Long-term Liabilities	39,467	38,631
Deferred Income Taxes	133,865	129,139
Total Liabilities	512,634	524,296
Stockholders' Equity -
Preferred Stock, Par Value $0.01; Authorized 5,000,000 Shares; None Issued
Common Stock, Par Value $0.01; Authorized 100,000,000 Shares; Issued and Outstanding 45,269,493 and 44,447,428 Shares, respectively.	453	444
Capital in Excess of Par Value	37,692	24,859
Accumulated Other Comprehensive Losses	(5,516)	(2,893)
Retained Earnings	439,882	439,104
Total Stockholders' Equity	472,511	461,514
Liabilities and Stockholders' Equity, Total	$ 985,145	$ 985,810

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2012	Mar. 31, 2011
Consolidated Balance Sheets [Abstract]
Preferred Stock, Par Value	$ 0.01	$ 0.01
Preferred Stock, Authorized	5,000,000	5,000,000
Preferred Stock, Issued	0	0
Common Stock, Par Value	$ 0.01	$ 0.01
Common Stock, Authorized	100,000,000	100,000,000
Common Stock, Issued	45,269,493	44,447,428
Common Stock, Outstanding	45,269,493	44,447,428

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net Earnings	$ 18,732	$ 14,849	$ 28,950
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities, Net of Effect of Non-Cash Activity -
Depreciation, Depletion and Amortization	50,124	49,212	50,781
Gain on Sale of Property, Plant and Equipment		(485)	(2,510)
Other Non-Operating Expense		10,701	2,548
Deferred Income Tax Provision	2,188	8,497	1,201
Stock Compensation Expense	5,509	3,587	2,825
Excess Tax Benefits from Share Based Payment Arrangements	(1,568)	(1,784)	(761)
Equity in Earnings of Unconsolidated Joint Venture	(28,528)	(24,233)	(24,157)
Distributions from Joint Venture	23,250	24,500	29,750
Changes in Operating Assets and Liabilities:
Accounts and Notes Receivable	(10,452)	11,126	(7,008)
Inventories	(8,369)	(9,366)	1,192
Accounts Payable and Accrued Liabilities	3,327	(29,418)	(16,026)
Other Assets	(2,423)	(4,399)	(1,866)
Income Taxes Payable/Receivable	9,062	(8,704)	(353)
Net Cash Provided by Operating Activities	60,852	44,083	64,566
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(26,099)	(17,224)	(13,779)
Proceeds from Sale of Property, Plant and Equipment		600
Net Cash Used in Investing Activities	(26,099)	(16,624)	(13,779)
CASH FLOWS FROM FINANCING ACTIVITIES
Excess Tax Benefits from Share Based Payment Arrangements	1,568	1,784	761
Increase (Decrease) in Bank Credit Facility	68,000	(1,000)	(52,000)
Repayment of Senior Notes	(88,064)	(15,000)
Dividends Paid to Stockholders	(17,876)	(17,634)	(17,471)
Proceeds from Stock Option Exercises	7,138	4,849	1,541
Shares Redeemed to Settle Employee Taxes on Stock Compensation	(912)
Net Cash Used in Financing Activities	(30,146)	(27,001)	(67,169)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	4,607	458	(16,382)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	1,874	1,416	17,798
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 6,481	$ 1,874	$ 1,416

Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Capital In Excess Of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Losses [Member]	Total
Balance (Scenario, Previously Reported [Member]) at Mar. 31, 2009	$ 436	$ 11,166	$ 428,550	$ (6,040)	$ 434,112
Balance at Mar. 31, 2009	436	11,166	430,500	(6,040)	436,062
Net Earnings			28,950		28,950
Stock Option Exercises and Restricted Share Vesting	2	1,539			1,541
Tax Benefit (Loss)-Stock Option Exercise		(807)			(807)
Dividends to Stockholders			(17,496)		(17,496)
Stock Compensation Expense		2,825			2,825
Unfunded Pension Liability, net of tax				2,522	2,522
Balance at Mar. 31, 2010	438	14,723	441,954	(3,518)	453,597
Net Earnings			14,849		14,849
Stock Option Exercises and Restricted Share Vesting	6	4,843			4,849
Tax Benefit (Loss)-Stock Option Exercise		1,706			1,706
Dividends to Stockholders			(17,699)		(17,699)
Stock Compensation Expense		3,587			3,587
Unfunded Pension Liability, net of tax				625	625
Balance at Mar. 31, 2011	444	24,859	439,104	(2,893)	461,514
Net Earnings			18,732		18,732
Stock Option Exercises and Restricted Share Vesting	9	7,129			7,138
Tax Benefit (Loss)-Stock Option Exercise		1,107			1,107
Dividends to Stockholders			(17,954)		(17,954)
Stock Compensation Expense		5,509			5,509
Shares Redeemed to Settle Employee Taxes		(912)			(912)
Unfunded Pension Liability, net of tax				(2,623)	(2,623)
Balance at Mar. 31, 2012	$ 453	$ 37,692	$ 439,882	$ (5,516)	$ 472,511

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

- Definition

The after-tax amount of the change in the additional pension liability not yet recognized pursuant to FAS 87 par 37 and 38 as a net periodic pension cost. If the additional pension liability required to be recognized exceeds the unrecognized prior service costs, then the excess (which is the net loss not yet recognized as net periodic pension cost) is to be recorded as a reduction of other comprehensive income, before adjusting for tax effects. If in a subsequent measurement, the amount of minimum liability is eliminated or adjusted, this adjustment is offset against other comprehensive income in Accumulated Comprehensive Income. This line also includes changes in an entity's share of an equity investee's Increase or Decrease in additional pension liability not yet recognized as a net periodic pension cost. Eliminated upon adoption of FAS 158.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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+ Details

Significant Accounting Policies

12 Months Ended

Mar. 31, 2012

Significant Accounting Policies [Abstract]

Significant Accounting Policies

(A) Significant Accounting Policies

Basis of Presentation –

The consolidated financial statements include the accounts of Eagle Materials Inc. and its majority-owned subsidiaries ("EXP" or the "Company"), which may be referred to as "our", "we", or "us". All intercompany balances and transactions have been eliminated. EXP is a holding company whose assets consist of its investments in its subsidiaries, joint venture, intercompany balances and holdings of cash and cash equivalents. The businesses of the consolidated group are conducted through EXP's subsidiaries. The Company conducts one of its cement plant operations through a joint venture, Texas Lehigh Cement Company L.P., which is located in Buda, Texas (the "Joint Venture"). Investments in the Joint Venture and affiliated companies owned 50% or less are accounted for using the equity method of accounting. The Equity in Earnings of Unconsolidated Joint Venture has been included for the same period as our March 31 year end.

The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

We evaluated all events or transactions that occurred after March 31, 2012 through the filing of these financial statements.

Reclassifications –

Certain prior period reclassifications have been made to conform to the current period presentation.

Cash and Cash Equivalents –

Cash equivalents include short-term, highly liquid investments with original maturities of three months or less and are recorded at cost, which approximates market value.

Accounts and Notes Receivable –

Accounts and notes receivable have been shown net of the allowance for doubtful accounts of $5.0 million and $4.6 million at both March 31, 2012 and 2011, respectively. We perform ongoing credit evaluations of our customers' financial condition and generally require no collateral from our customers. The allowance for non-collection of receivables is based upon analysis of economic trends in the construction industry, detailed analysis of the expected collectability of accounts receivable that are past due and the expected collectability of overall receivables. We have no significant credit risk concentration among our diversified customer base.

We had notes receivable totaling approximately $4.3 million at March 31, 2012, of which approximately $0.9 million has been classified as current and presented with accounts receivable on the balance sheet. We lend funds to certain companies in the ordinary course of business, and the notes bear interest, on average, at the prime rate plus 1.5%. Remaining unpaid amounts, plus accrued interest, mature on various dates between 2012 and 2017. The notes are collateralized by certain assets of the borrowers, namely property and equipment. We monitor the credit risk of each borrower by focusing on the timeliness of payments, review of credit history and credit metrics and interaction with the borrowers. At March 31, 2012, approximately $0.6 million of our allowance for doubtful accounts is related to our notes receivable.

Inventories –

Inventories are stated at the lower of average cost (including applicable material, labor, depreciation, and plant overhead) or market. Inventories consist of the following:


	March 31,
	2012		2011
	(dollars in thousands)
Raw Materials and Materials-in-Progress	$	46,336	$	36,497
Finished Cement		10,391		11,540
Gypsum Wallboard		6,215		6,347
Aggregates		14,155		12,419
Paperboard		2,443		5,274
Repair Parts and Supplies		40,352		40,280
Fuel and Coal		3,714		2,880

	$	123,606	$	115,237

Property, Plant and Equipment –

Property, plant and equipment are stated at cost. Major renewals and improvements are capitalized and depreciated. Annual maintenance is expensed as incurred. Depreciation is provided on a straight-line basis over the estimated useful lives of depreciable assets and totaled $48.9 million, $48.2 million and $49.7 million for the years ended March 31, 2012, 2011 and 2010, respectively. Raw material deposits are depleted as such deposits are extracted for production utilizing the units-of-production method. Costs and accumulated depreciation applicable to assets retired or sold are eliminated from the accounts and any resulting gains or losses are recognized at such time. The estimated lives of the related assets are as follows:



Plants			20 to 30 years

Buildings			20 to 40 years

Machinery and Equipment			3 to 25 years

We periodically evaluate whether current events or circumstances indicate that the carrying value of our depreciable assets may not be recoverable. At March 31, 2012 and 2011, management believes no events or circumstances indicate that the carrying value may not be recoverable.

We temporarily idled our gypsum manufacturing facility in Bernalillo, N.M. beginning in December 2009, due to cyclical low gypsum wallboard demand. The carrying value of the Bernalillo plant and equipment at March 31, 2012 was $3.4 million and $4.0 million, respectively and we continue to depreciate the assets over their estimated useful life. We currently have a strong market position in New Mexico, and our Albuquerque gypsum wallboard facility is operating at close to capacity. We plan on resuming manufacturing at the Bernalillo facility in the future when demand for our products improves. Costs of maintaining the facility during the idling are not significant, and the facility was generating positive cash flow prior to being idled; therefore, we have determined that the value of the plant and equipment is not impaired. We are not currently considering the permanent closure of the Bernalillo facility. Any decision to permanently close Bernalillo would be the result of future changes in the building materials industry in the southwest United States and Rocky Mountain region, including changes in the production capacity or operations of our competitors, demand for gypsum wallboard or general macro-economic conditions, which we do not foresee at the present time. If we were to permanently close the Bernalillo facility, or if our expectations as to its use changed such that we project the future undiscounted cash flows from its operations would be insufficient to recover its carrying value due to the factors described above, or for any other reason, we would recognize impairment at that time. All of our other wallboard facilities are currently generating positive cash flow from operations.

Impairment or Disposal of Long-Lived Assets –

We evaluate the recoverability of our long-lived assets and certain identifiable intangibles, such as permits and customer contracts, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets, such as plants, buildings and machinery and equipment, including mining assets, is measured by comparing the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. Such evaluations for impairment are significantly impacted by estimates of future prices for our products, capital needs, economic trends in the construction sector and other factors. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds their fair value. Assets to be disposed of by sale are reflected at the lower of their carrying amount or fair value less cost to sell.

Goodwill and Intangible Assets –

Goodwill. Goodwill is subject to at least an annual assessment for impairment by applying a fair-value-based test. We have elected to test for goodwill impairment in the fourth quarter of each fiscal year. The goodwill impairment test is a two-step process, which requires us to make judgments in determining what assumptions to use in the calculation. The first step of the process consists of estimating the fair value of each reporting unit based on a discounted cash flow model using revenues and profit forecasts and comparing those estimated fair values with the carrying value; a second step is performed, if necessary, to compute the amount of the impairment by determining an "implied fair value" of goodwill. Similar to the review for impairment of other long-lived assets, evaluations for impairment are significantly impacted by estimates of future prices for our products, capital needs, economic trends and other factors. Given the relative weakness in the gypsum wallboard industry utilization, coupled with the slow recovery in residential housing, we expect to continue to perform impairment tests at the end of each quarter on our gypsum wallboard assets and related goodwill, which we began during fiscal 2009, during fiscal 2013, unless we determine that an impairment loss is not reasonably likely to occur.


	March 31, 2012
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(983	)	$	317
Permits		40 years		22,000		(3,930	)		18,070
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,913	)	$	150,902


	March 31, 2011
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(896	)	$	404
Permits		40 years		22,000		(3,380	)		18,620
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,276	)	$	151,539

Amortization expense of intangibles was $0.6 million for each of the years ended March 31, 2012, 2011 and 2010.

Other Assets –

Other assets are primarily composed of loan fees and financing costs, deferred expenses, and deposits.

Income Taxes –

Income taxes are accounted for using the asset and liability method. Deferred taxes are recognized for the tax consequences of temporary differences by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and the tax bases of existing assets and liabilities. The effect on deferred taxes of a change in tax rates is recognized in income in the period that includes the enactment date. In addition, we recognize future tax benefits to the extent that such benefits are more likely than not to be realized.

Stock Repurchases –

Our Board of Directors has approved the repurchase of a cumulative total of 31,610,605 shares, of which approximately 717,300 shares remain available for repurchase at March 31, 2012. We did not repurchase any shares during the years ended March 31, 2012, 2011 and 2010.

Revenue Recognition –

Revenue from the sale of cement, gypsum wallboard, paperboard, concrete and aggregates is recognized when title and ownership are transferred upon shipment to the customer. Fees for shipping and handling are recorded as revenue, while costs incurred for shipping and handling are recorded as expenses.

We classify amounts billed to customers for freight as revenues and freight costs as cost of goods sold, respectively, in the Consolidated Statements of Earnings. Approximately $66.0 million, $62.0 million and $59.1 million were classified as cost of goods sold in the years ended March 31, 2012, 2011 and 2010, respectively.

Other operating income includes lease and rental income, asset sale income, non-inventoried aggregates sales income, distribution center income and trucking income as well as other miscellaneous revenue items and costs which have not been allocated to a business segment.

Comprehensive Income/Losses –

A summary of comprehensive income for the fiscal years ended March 31, 2012, 2011 and 2010 is presented below:


	For the Years Ended March 31,
	2012			2011		2010
	(dollars in thousands)
Net Earnings	$	18,732		$	14,849	$	28,950
Other Comprehensive Income , net of tax:
Pension Plan Actuarial Gain (Loss), net of tax		(2,623	)		625		2,522

Comprehensive Income	$	16,109		$	15,474	$	31,472

As of March 31, 2012, we have an accumulated other comprehensive loss of $5.5 million, which is net of income taxes of $3.0 million, in connection with recognizing the difference between the fair value of the pension assets and the projected benefit obligation.

Consolidated Cash Flows – Supplemental Disclosures –

Interest payments made during the years ended March 31, 2012, 2011 and 2010 were $18.8 million, $18.1 million and $21.4 million, respectively.

We received a refund of $8.0 million, and made net payments of $61.9 million and $6.8 million for federal and state income taxes in the years ended March 31, 2012, 2011 and 2010, respectively. Certain deposits made with the IRS in fiscal year 2010 were converted to payments in fiscal 2011, and are shown as payments in fiscal 2011.

Statements of Consolidated Earnings – Supplemental Disclosures –

Maintenance and repair expenses are included in each segment's costs and expenses. We incurred $37.6 million, $34.5 million and $38.9 million in the years ended March 31, 2012, 2011 and 2010, respectively, which is included in Cost of Goods Sold on the Consolidated Statement of Earnings.

Selling, general and administrative expenses of the operating units are included in Cost of Goods Sold on the Consolidated Statements of Earnings. Corporate general and administrative ("G&A") expenses include administration, financial, legal, employee benefits and other corporate activities and are shown separately in the consolidated statements of earnings. Corporate G&A also includes stock compensation expense. See Note (I) for more information.

Total selling, general and administrative expenses for each of the periods are summarized as follows:


	For the Years Ended March 31,
	2012		2011		2010
	(dollars in thousands)
Operating Units Selling, G&A	$	27,695	$	26,812	$	29,064
Corporate G&A		19,617		16,667		15,886

	$	47,312	$	43,479	$	44,950

During fiscal 2012, we repurchased $88.1 million of our senior debt at a premium, which was recorded inclusive of transaction costs. The amount of the premium plus transaction costs was $2.1 million.

Earnings Per Share –


	For the Years Ended March 31,
	2012			2011			2010
Weighted-Average Shares of Common Stock Outstanding		44,224,924			43,891,817			43,684,942
Effect of Dilutive Shares:
Assumed Exercise of Outstanding Dilutive Options		800,748			1,186,064			1,026,667
Less Shares Repurchased from Proceeds of Assumed Exercised Options⁽¹⁾		(652,046	)		(934,328	)		(745,235	)
Restricted Stock Units		142,355			107,723			72,027

Weighted-Average Common Stock and Dilutive Securities Outstanding		44,515,981			44,251,276			44,038,401

⁽¹⁾	Includes unearned compensation related to outstanding stock options.

There were 2,773,279, 1,904,637 and 2,738,219 stock options at an average exercise price of $42.17 per share, $44.45 per share and $39.15 per share that were excluded from the computation of diluted earnings per share for the years ended March 31, 2012, 2011 and 2010, respectively, because such inclusion would have been anti-dilutive.

Fair Value Measures

Certain assets and liabilities are required to be recorded at fair value. The estimated fair values of those assets and liabilities have been determined using market information and valuation methodologies. Changes in assumptions or estimation methods could affect the fair value estimates; however, we do not believe any such changes would have a material impact on our financial condition, results of operations or cash flows. There are three levels of inputs that may be used to measure fair value:

Level 1 – Quoted prices for identical assets and liabilities in active markets;

Level 2 – Quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data; and

Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

New Accounting Standards –

In May 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. This ASU clarifies the application of certain existing fair value measurement guidance and expands the disclosures for fair value measurements that are estimated using significant unobservable (Level 3) inputs. This guidance is effective for interim and annual periods beginning on or after December 15, 2011, applied prospectively. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In June 2011, the FASB issued ASU 2011-05, Presentation of Comprehensive Income, which requires comprehensive income to be reported in either a single statement of comprehensive income or in separate, consecutive statements reporting net income and other comprehensive income. In December 2011, the FASB issued ASU 2011-12 which defers the effective date of the requirement in ASU 2011-05 to present separate line items on the income statement for reclassification adjustments of items out of accumulated other comprehensive income into net income. Retrospective application is required and both ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We will adopt this Standard during our fiscal first quarter ended June 30, 2012.

Other Non Operating Expense –

Other non-operating expense consists primarily of significant non-business expenses. Amounts classified as other non-operating expenses related to our loss on arbitration ruling, and our decision not to move forward with planned expansions of our Mountain Cement and Nevada Cement facilities.

During January 2012, an arbitration panel announced an adverse decision against the Company in a dispute between one of our aggregates mining subsidiaries and another mining company over the right to mine certain areas. As a result of the adverse ruling, the other mining company was awarded $6.9 million, plus attorney's fees of $1.2 million. All amounts were paid during February 2012. This amount, together with our legal expenses incurred defending this claim, is classified as Other Non-Operating Expense in our Consolidated Statements of Earnings for the fiscal year ended March 31, 2012. See Note (H), Commitments and Contingencies, on pages 62-64 for more information about the arbitration ruling.

During February 2011, we determined that we would not move forward with the planned expansion of our Nevada Cement facility. As a result of this decision, we wrote-off approximately $8.9 million related to the planned expansion during fiscal 2011. The remaining expense consists of the write-down of unused aggregate equipment in our Texas operation and other miscellaneous write-downs. During fiscal 2010, due to improved operational efficiencies and reduced costs, we withdrew our permit application with the Wyoming Department of Environmental Quality. In connection with the withdrawal, we expensed approximately $2.5 million relating to the planned expansion.

Adjustment for Reversal of Accrual

During January 2012, we determined that our previous treatment of a reversal of a $3.0 million accrual, which related to a prior year, should have been treated as a correction of an error in the prior period rather than a reduction of Cost of Goods Sold during the three month period ended June 30, 2011, as it was previously reported. The accrual was originally recorded in fiscal 2001 as a contra account in the fixed asset subledger, and related to expected costs to improve certain manufacturing equipment at our Duke, Oklahoma gypsum wallboard facility. The amount was recorded in order to properly state the acquired assets at fair value; however, the accrual was not released as the original assets were depreciated over their useful life. The adjustment increased Property Plant and Equipment by $3.0 million, with a corresponding increase in Deferred Income Taxes of $1.05 million and Retained Earnings of $1.95 million at March 31, 2009. This adjustment did not have a significant impact on our net income or financial position in fiscal 2011 and 2010, and did not impact cash flows from operating activities during fiscal 2012, 2011 or 2010.

Property, Plant And Equipment

12 Months Ended

Mar. 31, 2012

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment

(B) Property, Plant and Equipment

Cost by major category and accumulated depreciation are summarized as follows:


	March 31,
	2012			2011
	(dollars in thousands)
Land and Quarries	$	81,175		$	68,185
Plants		958,985			956,402
Buildings, Machinery and Equipment		96,954			85,117
Construction in Progress		3,630			5,354

		1,140,744			1,115,058
Accumulated Depreciation		(560,236	)		(512,228	)

	$	580,508		$	602,830

Included in Property, Plant and Equipment are $46.0 million and $34.9 million of mining and related assets (net of accumulated depreciation) at March 31, 2012 and 2011, respectively

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Accrued Expenses

12 Months Ended

Mar. 31, 2012

Accrued Expenses [Abstract]

Accrued Expenses

(C) Accrued Expenses

Accrued expenses at March 31, 2012 and 2011 consist of the following:


	March 31,
	2012		2011
	(dollars in thousands)
Payroll and Incentive Compensation	$	7,320	$	7,712
Benefits		8,583		7,988
Interest		4,904		7,003
Insurance		5,068		6,639
Property Taxes		3,865		4,033
Other		3,879		5,812

	$	33,619	$	39,187

Indebtedness

12 Months Ended

Mar. 31, 2012

Indebtedness [Abstract]

Indebtedness

(D) Indebtedness

Long-term debt consists of the following:


	As of
	March 31, 2012			March 31, 2011
	(dollars in thousands)
Bank Credit Facility	$	70,000		$	2,000
Senior Notes		196,936			285,000

Total Debt		266,936			287,000
Less: Current Portion of Long-term Debt		(4,677	)		—

Long-term Debt	$	262,259		$	287,000

On December 16, 2011, we accepted for repurchase $59.1 million in aggregate principal amount of our Series 2007A Senior Notes for $60.2 million, plus accrued interest of $0.3 million, and $29.0 million in aggregate principal amount of our Series 2005A Senor Notes for $29.6 million, plus accrued interest of $0.4 million. The purchase of the Senior Notes was funded through borrowings under our Bank Credit Facility. The premium paid on these repurchases has been included in Loss on Debt Retirement in our Consolidated Statement of Earnings for the fiscal year ended March 31, 2012.

The weighted-average interest rate of Senior Notes during fiscal 2012 and 2011 was 5.78% and 5.75%, respectively. The weighted average interest rate of Senior Notes was 5.80% and 5.75% at March 31, 2012 and 2011, respectively.

The weighted-average interest rate of bank debt borrowings during fiscal 2012, 2011 and 2010 was 2.6%, 1.7% and 1.6%, respectively. The interest rate on the bank debt was 2.5% and 2.3% at March 31, 2012 and 2011, respectively.

Our maturities of long-term debt during the next five fiscal years and thereafter are as follows:


Fiscal Year	Amount
2013	$	4,677
2014		—
2015		9,500
2016		127,045
2017		8,000
Thereafter		117,714

Total	$	266,936

Senior Notes –

We entered into a Note Purchase Agreement on November 15, 2005 (the "2005 Note Purchase Agreement") related to our sale of $200 million of senior, unsecured notes, designated as Series 2005A Senior Notes (the "Series 2005A Senior Notes") in a private placement transaction. The Series 2005A Senior Notes, which are guaranteed by substantially all of our subsidiaries, were sold at par and issued in three tranches on November 15, 2005. Since entering the 2005 Note Purchase Agreement, we have repurchased $81.1 million in principal of the Series 2005A Senior Notes. As of March 31, 2012, the amounts outstanding for each of the three tranches are as follows:


	Principal		Maturity Date		Interest Rate
Tranche A	$	4.7 million		November 15, 2012		5.25	%
Tranche B	$	57.0 million		November 15, 2015		5.38	%
Tranche C	$	57.2 million		November 15, 2017		5.48	%

Interest for each tranche of Notes is payable semi-annually on the 15^th day of May and the 15^th day of November of each year until all principal is paid for the respective tranche.

We entered into an additional Note Purchase Agreement on October 2, 2007 (the "2007 Note Purchase Agreement") related to our sale of $200 million of senior, unsecured notes, designated as Series 2007A Senior Notes (the "Series 2007A Senior Notes") in a private placement transaction. The Series 2007A Senior Notes, which are guaranteed by substantially all of our subsidiaries, were sold at par and issued in four tranches on October 2, 2007. Since entering into the 2007 Note Purchase Agreement, we have repurchased $122.0 million in principal of the Series 2007A Senior Notes. As of March 31, 2012, the amounts outstanding for each of the four tranches are as follows:


	Principal		Maturity Date		Interest Rate
Tranche A	$	9.5 million		October 2, 2014		6.08	%
Tranche B	$	8.0 million		October 2, 2016		6.27	%
Tranche C	$	24.0 million		October 2, 2017		6.36	%
Tranche D	$	36.5 million		October 2, 2019		6.48	%

Interest for each tranche of Notes is payable semi-annually on the second day of April and the second day of October of each year until all principal is paid for the respective tranche.

Our obligations under the 2005 Note Purchase Agreement and the 2007 Note Purchase Agreement (collectively referred to as the "Note Purchase Agreements") and the Series 2005A Senior Notes and the Series 2007A Senior Notes (collectively referred to as "the Senior Notes") are equal in right of payment with all other senior, unsecured debt of the Company, including our debt under the Credit Facility. The Note Purchase Agreements contain customary restrictive covenants, including covenants that place limits on our ability to encumber our assets, to incur additional debt, to sell assets, or to merge or consolidate with third parties, as well as certain cross covenants with the Credit Facility. We were in compliance with all financial ratios and tests at March 31, 2012 and throughout the fiscal year.

Pursuant to a Subsidiary Guaranty Agreement, substantially all of our subsidiaries have guaranteed the punctual payment of all principal, interest, and Make-Whole Amounts (as defined in the Note Purchase Agreements) on the Senior Notes and the other payment and performance obligations of the Company contained in the Senior Notes and in the Note Purchase Agreements. We are permitted, at our option and without penalty, to prepay from time to time at least 10% of the original aggregate principal amount of the Senior Notes at 100% of the principal amount to be prepaid, together with interest accrued on such amount to be prepaid to the date of payment, plus a Make-Whole Amount. The Make-Whole Amount is computed by discounting the remaining scheduled payments of interest and principal of the Senior Notes being prepaid at a discount rate equal to the sum of 50 basis points and the yield to maturity of U.S. treasury securities having a maturity equal to the remaining average life of the Senior Notes being prepaid.

Bank Debt –

On December 16, 2010, we entered into a $300.0 million credit agreement ("the "Credit Facility") that expires on December 16, 2015. Borrowings under the Credit Facility are guaranteed by all major operating subsidiaries of the Company. At the option of the Company, outstanding principal amounts on the Credit Facility bear interest at a variable rate equal to (i) LIBOR, plus an agreed margin (ranging from 100 to 225 basis points), which is to be established quarterly based upon the Company's ratio of consolidated EBITDA, which is defined as earnings before interest, taxes, depreciation and amortization, to its consolidated indebtedness, or (ii) an alternative base rate which is the higher of (a) the prime rate or (b) the federal funds rate plus ¹/2%, per annum plus an agreed margin (ranging from 0 to 125 basis points). Interest payments are payable monthly or at the end of the LIBOR advance periods, which can be up to a period of six months at the option of the Company. The Credit Facility contains customary covenants that restrict our ability to incur additional debt, encumber our assets, sell assets, make or enter into certain investments, loans or guaranties and enter into sale and leaseback arrangements. The Credit Facility also requires us to maintain a consolidated funded indebtedness ratio (consolidated indebtedness to consolidated earnings before interest, taxes, depreciation, amortization and other non-cash deductions) of 3.5 or less and an interest coverage ratio (consolidated earnings before interest, taxes, depreciation, amortization and other non-cash deductions to interest expense) of at least 2.5. The Credit Facility also limits our ability to make certain restricted payments, such as paying cash dividends; however, there are several exceptions to this restriction, including: (i) the Company may pay cash dividends in an aggregate amount of up to $50.0 million each fiscal year; and (ii) the Company may make restricted payments not otherwise permitted so long as no default would result therefrom and our consolidated funded indebtedness ratio does not exceed 3.0.

The Credit Facility has a $50.0 million letter of credit facility. Under the letter of credit facility, the Company pays a fee at a per annum rate equal to the applicable margin for Eurodollar loans in effect from time to time plus a one-time letter of credit fee in an amount equal to 0.125% of the initial stated amount. At March 31, 2012, we had $9.0 million of letters of credit outstanding.

We had $70.0 million of borrowings outstanding under the Credit Facility at March 31, 2012, and had $221.0 million of borrowings available under the Credit Facility at March 31, 2012; however, due to certain covenants contained in the Bank Credit Facility, namely the requirement for our consolidated funded indebtedness ratio to remain at 3.50 to 1.0 or less, and other outstanding debt instruments, approximately $100.0 million in additional borrowings were available to us at March 31, 2012 without exceeding this ratio.

On August 31, 2011, we entered into an Uncommitted Master Shelf Agreement (the "Shelf Agreement") with John Hancock Life Insurance Company (U.S.A.) ("Hancock"). The Shelf Agreement provides the terms under which the Company may offer up to $75 million of its senior unsecured notes for purchase by Hancock or Hancock's affiliates that become bound by the Shelf Agreement (collectively, "Purchasers"). The Shelf Agreement does not obligate the Company to sell, or the Purchasers to buy, any such notes, and has a term of two years. We have not sold any notes pursuant to the Shelf Agreement as of March 31, 2012.

Fair Value Of Financial Instruments

12 Months Ended

Mar. 31, 2012

Fair Value Of Financial Instruments [Abstract]

Fair Value Of Financial Instruments

(E) Fair Value of Financial Instruments

The fair value of our senior notes has been estimated based upon our current incremental borrowing rates for similar types of borrowing arrangements. The fair value of our Senior Notes at March 31, 2012 is as follows:


	Fair Value
	(dollars in thousands)
Series 2005A Tranche A	$	4,724
Series 2005A Tranche B		58,671
Series 2005A Tranche C		58,267
Series 2007A Tranche A		9,922
Series 2007A Tranche B		8,511
Series 2007A Tranche C		25,440
Series 2007A Tranche D		38,705

All assets and liabilities which are not considered financial instruments have been valued using historical cost accounting. The carrying values of cash and cash equivalents, accounts and notes receivable, accounts payable and accrued liabilities approximate their fair values due to the short-term maturities of these assets and liabilities. Outstanding amounts under our Bank Credit Facility also approximate fair value due to the variable rate of interest charged on outstanding amounts.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13504-108611

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

Business Segments

12 Months Ended

Mar. 31, 2012

Business Segments [Abstract]

Business Segments

(F) Business Segments

Operating segments are defined as components of an enterprise that engage in business activities that earn revenues, incur expenses and prepare separate financial information that is evaluated regularly by our chief operating decision maker in order to allocate resources and assess performance.

We operate in four business segments: Cement, Gypsum Wallboard, Recycled Paperboard, and Concrete and Aggregates, with Gypsum Wallboard and Cement being our principal lines of business. These operations are conducted in the U.S. and include the mining of limestone and the manufacture, production, distribution and sale of Portland cement (a basic construction material which is the essential binding ingredient in concrete), the mining of gypsum and the manufacture and sale of gypsum wallboard, the manufacture and sale of recycled paperboard to the gypsum wallboard industry and other paperboard converters, the sale of readymix concrete and the mining and sale of aggregates (crushed stone, sand and gravel). These products are used primarily in commercial and residential construction, public construction projects and projects to build, expand and repair roads and highways.

As further discussed below, we operate four cement plants, eleven cement distribution terminals, five gypsum wallboard plants, including the plant temporarily idled in Bernalillo, N.M., a gypsum wallboard distribution center, a recycled paperboard mill, nine readymix concrete batch plant locations and two aggregates processing plant locations. The principal markets for our cement products are Texas, northern Illinois (including Chicago), the Rocky Mountains, northern Nevada, and northern California. Gypsum wallboard and recycled paperboard are distributed throughout the continental U.S. Concrete and aggregates are sold to local readymix producers and paving contractors in the Austin, Texas area and northern California.

We conduct one of our four cement plant operations, Texas Lehigh Cement Company LP in Buda, Texas, through a Joint Venture. For segment reporting purposes only, we proportionately consolidate our 50% share of the Joint Venture's revenues and operating earnings, which is consistent with the way management reports the segments within the Company for making operating decisions and assessing performance.

We account for intersegment sales at market prices. The following table sets forth certain financial information relating to our operations by segment:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Revenues -
Cement	$	243,978		$	225,784		$	228,475
Gypsum Wallboard		217,633			204,560			210,671
Paperboard		118,794			104,775			90,164
Concrete and Aggregates		45,515			44,236			45,622

		625,920			579,355			574,932
Less: Intersegment Revenues		(44,757	)		(42,263	)		(41,589	)
Less: Joint Venture Revenues		(86,140	)		(74,912	)		(65,438	)

	$	495,023		$	462,180		$	467,905


	For the Years Ended March 31,
	2012		2011		2010
	(dollars in thousands)
Intersegment Revenues -
Cement	$	3,605	$	4,086	$	4,449
Paperboard		40,485		37,622		36,369
Concrete and Aggregates		667		555		771

	$	44,757	$	42,263	$	41,589

Cement Sales Volumes (M tons) -
Wholly-Owned		1,857		1,718		1,754
Joint Venture		866		823		713

		2,723		2,541		2,467


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Operating Earnings -
Cement	$	46,850		$	45,688		$	58,007
Gypsum Wallboard		6,264			1,242			1,383
Paperboard		16,988			12,086			14,805
Concrete and Aggregates		(1,097	)		794			1,835
Other, net		356			840			3,161

Sub-Total		69,361			60,650			79,191
Corporate General and Administrative		(19,617	)		(16,667	)		(15,886	)
Other Corporate Charges		(9,117	)		(10,701	)		(2,548	)

Earnings Before Interest and Income Taxes		40,627			33,282			60,757
Loss on Debt Retirement		(2,094	)		—			—
Interest Expense, net		(16,621	)		(16,520	)		(21,460	)

Earnings Before Income Taxes	$	21,912		$	16,762		$	39,297


Cement Operating Earnings -
Wholly-Owned	$	18,322		$	21,455		$	33,850
Joint Ventures		28,528			24,233			24,157

	$	46,850		$	45,688		$	58,007

Identifiable Assets -
Cement	$	313,559		$	304,693		$	308,606
Gypsum Wallboard		434,967			446,174			466,426
Paperboard		137,483			144,434			149,602
Aggregates		49,009			39,907			39,975
Concrete		12,031			11,890			11,812
Corporate and Other		38,096			38,712			37,355

	$	985,145		$	985,810		$	1,013,776

Capital Expenditures -
Cement	$	7,753		$	9,395		$	12,744
Gypsum Wallboard		3,357			2,190			184
Paperboard		919			1,447			236
Aggregates		13,639			3,416			445
Concrete		321			351			75
Other, net		110			425			95

	$	26,099		$	17,224		$	13,779

Depreciation, Depletion and Amortization
Cement	$	15,373		$	14,468		$	14,683
Gypsum Wallboard		20,903			21,463			22,328
Paperboard		8,595			8,800			9,090
Aggregates		3,365			3,004			2,921
Concrete		1,022			836			1,054
Other, net		866			641			705

	$	50,124		$	49,212		$	50,781

Segment operating earnings, including the proportionately consolidated 50% interest in the revenues and expenses of the Joint Venture, represent revenues less direct operating expenses, segment depreciation, and segment selling, general and administrative expenses. We account for intersegment sales at market prices. Corporate assets consist primarily of cash and cash equivalents, general office assets and miscellaneous other assets.

The basis used to disclose Identifiable Assets, Capital Expenditures and Depreciation, Depletion conforms with the equity method, and is similar to how we disclose these accounts in our Consolidated Balance Sheets and Consolidated Statements of Earnings.

The segment breakdown of goodwill at March 31, 2012 and 2011 is as follows:


	For the Years Ended March 31,
	2012		2011
	(dollars in thousands)
Cement	$	8,359	$	8,359
Gypsum Wallboard		116,618		116,618
Paperboard		7,538		7,538

	$	132,515	$	132,515

During fiscal 2012, we provided approximately $12.0 million to our Joint Venture for its capital needs, which has been offset against distributions received from the Joint Venture during fiscal 2012 on the Consolidated Statement of Cash Flows.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 34
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

+ Details

Income Taxes

12 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income Taxes

(G) Income Taxes

The provision for income taxes includes the following components:


	For the Years Ended March 31,
	2012		2011			2010
	(dollars in thousands)
Current Provision (Benefit) -
Federal	$	812	$	(6,450	)	$	8,872
State		180		(134	)		274

		992		(6,584	)		9,146
Deferred Provision (Benefit) -
Federal		1,984		7,919			2,493
State		204		578			(1,292	)

		2,188		8,497			1,201

Provision for Income Taxes	$	3,180	$	1,913		$	10,347

The effective tax rates vary from the federal statutory rates due to the following items:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Earnings Before Income Taxes	$	21,912		$	16,762		$	39,297

Income Taxes at Statutory Rate	$	7,669		$	5,866		$	13,754
Increases (Decreases) in Tax Resulting from -
State Income Taxes, net		249			289			(662	)
Statutory Depletion in Excess of Cost		(2,619	)		(2,492	)		(3,180	)
Domestic Production Activities Deduction		36			195			(495	)
Meals and Entertainment Disallowance		284			283			371
Penalties on Uncertain Tax Positions		190			400			491
Tax Benefits-ASC 740 Accruals and State Amnesty Programs		(2,558	)		(2,840	)		—
Other		(71	)		212			68

Provision for Income Taxes	$	3,180		$	1,913		$	10,347

Effective Tax Rate		15	%		11	%		26	%

During the quarter ended December 31, 2011, the Federal statute of limitations for assessment for the years ended March 31, 2004, March 31, 2005 and March 31, 2006 expired. Also during the quarter, we participated in amnesty programs in Arizona, Colorado and California. These events were treated as discrete items in the tax provision and a benefit totaling $2.5 million on an after-tax basis was recognized. During January 2012, we received payment of the $9.1 million owed to us by the IRS at March 31, 2011 due to carryback of net operating loss for tax purposes.

The deferred income tax provision results from the following temporary differences in the recognition of revenues and expenses for tax and financial reporting purposes:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Excess Tax Depreciation and Amortization	$	4,617		$	(15	)	$	187
Bad Debts		(119	)		(324	)		27
Uniform Capitalization		(1,004	)		681			139
Accrual Changes		1,107			4,135			1,493
Uncertain Tax Position Accruals		(2,264	)		5,136			—
Other		(149	)		(1,116	)		(645	)

	$	2,188		$	8,497		$	1,201

Components of deferred income taxes are as follows:


	March 31,
	2012			2011
	(dollars in thousands)
Items Giving Rise to Deferred Tax Liabilities -
Excess Tax Depreciation and Amortization	$	(153,220	)	$	(149,652	)

Items Giving Rise to Deferred Tax Assets -
Accrual Changes		13,138			15,295
Bad Debts		1,825			1,705
Uniform Capitalization		990			(14	)
Other		3,588			2,186

Total Deferred Tax Assets	$	19,541		$	19,172

Deferred income taxes are classified in the consolidated balance sheet as follows:


	March 31,
	2012			2011
	(dollars in thousands)
Accrued Liabilities	$	—		$	(1,341	)

Prepaid and Other Assets		186			—

Deferred Income Taxes	$	(133,865	)	$	(129,139	)

Uncertain tax position –

We are subject to audit examinations at federal, state and local levels by tax authorities in those jurisdictions who may challenge the treatment or reporting of any return item. The tax matters challenged by the tax authorities are typically complex; therefore, the ultimate outcome of these challenges is subject to uncertainty.

Reconciliation of the consolidated liability for gross unrecognized tax benefits, excluding interest, from April 1, 2009 to March 31, 2012, is as follows:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Balance at Beginning of Year	$	28,450		$	49,107		$	70,382
Increase related to prior tax positions		534			3,734			1,424
Decrease related to prior tax positions		(2,797	)		(1,597	)		(933	)
Payments		(297	)		(22,794	)		(21,766	)

	$	25,890		$	28,450		$	49,107

We recognize penalties associated with uncertain tax positions as part of the tax provision, while interest associated with uncertain tax positions is included in interest expense. The following is a summary of the amounts of interest and penalties recognized in relation to our uncertain tax position:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Accrued interest recognized	$	(903	)	$	(1,468	)	$	2,741

Accrued penalties recognized	$	190		$	400		$	491

The amount of net unrecognized tax benefits that, if recognized, would affect the effective tax rate at March 31, 2012 was $25.9 million.

In May 2011, we filed a lawsuit against the Internal Revenues Service ("IRS") in Federal District Court to recover all of the amounts paid to the IRS with respect to our uncertain tax position. If we were to prevail, we would receive a refund of up to $106.6 million related to federal and state taxes, interest and penalties paid since fiscal 2008 (see Note (H) for more information). Any refund of income taxes or penalties received from the IRS would be recorded as a tax benefit and impact our effective rate. Additionally, we would reduce other long-term liabilities by $29.3 million, which is comprised of $25.9 million related to our unrecognized tax benefit, including penalties, and $3.4 for accrued interest on the uncertain tax position, which would also impact our tax provision.

We expect approximately $12.9 million of changes in our unrecognized tax benefit liability over the next twelve months, as we anticipate paying $9.0 million of federal and state income taxes, and $3.9 million interest and penalties for tax years 2007 through 2011. Ultimately, the amount paid will increase the amount of our Federal District Court recovery lawsuit.

We currently are unable to estimate the range of possible increase or decrease in uncertain tax positions that may occur within the next twelve months resulting from the eventual outcome of the years currently under audit or appeal, and therefore cannot anticipate whether such outcome will result in a material change to our financial position or results of operations.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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-Paragraph 2
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Commitments And Contingencies

12 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Commitments And Contingencies

(H) Commitments and Contingencies

Our operations and properties are subject to extensive and changing federal, state and local laws, regulations and ordinances governing the protection of the environment, as well as laws relating to worker health and workplace safety. We carefully consider the requirements mandated by such laws and regulations and have procedures in place at all of our operating units to monitor compliance. Any matters which are identified as potential exposures under these laws and regulations are carefully reviewed by management to determine our potential liability. Although management is not aware of any exposures which require an accrual under generally accepted accounting principles, there can be no assurance that prior or future operations will not ultimately result in violations, claims or other liabilities associated with these regulations.

The IRS completed the examination of our federal income tax returns for all of the fiscal years ended March 31, 2001 through 2006. The IRS issued Exam Reports and Notices of Proposed Adjustment on November 9, 2007 for the examination of the 2001, 2002 and 2003 tax years, and on February 5, 2010 for the examination of the 2004, 2005 and 2006 tax years, in which it proposes to deny certain depreciation deductions claimed by us with respect to assets acquired by us from Republic Group LLC in November 2000 (the "Republic Assets"). The examination of our federal income tax return for fiscal years ended March 31, 2007 through March 31, 2011 is currently in progress.

In June 2010, we received a Notice of Deficiency ("Notice") (commonly referred to as a "90 Day Letter") of $71.5 million of taxes and penalties for the fiscal years ended March 31, 2001 through 2006, inclusive, related to the IRS audit of the Republic Asset Acquisition. The Notice was in substantial agreement with our financial accruals, including interest. The total amount related to the Notice, including interest, was approximately $98.7 million, of which $75 million had previously been deposited with the IRS. We deposited the remaining $23.7 million with the IRS in July 2010 and asked the IRS to apply all $98.7 million of deposits to the payment of the tax, penalties and interest. Subsequent review of the IRS interest billing produced a refund of $0.8 million which reduced the net outlay to $97.9 million. Refund claims were filed with the IRS in October 2010 to recover all $97.9 million, plus interest, and in May 2011 we filed a lawsuit in Federal District Court to recover the requested refunds. Additionally, as a result of the Notice, we paid $8.4 million in state taxes, penalties and interest during the fiscal year ended March 31, 2011 and an additional $0.3 million in state taxes and interest during the fiscal year ended March 31, 2012.

In the event we reach a settlement through negotiation or in the courts, we will reverse any paid or accrued taxes, interest and penalties in excess of the negotiated settlement through the Consolidated Statement of Earnings. At this time, we are unable to predict with certainty the ultimate outcome or how much of the amounts paid for tax, interest, and penalties to the IRS and state taxing authorities will be recovered, if any.

In June 2011, we were served with a claim for arbitration involving a contract dispute between one of our aggregates mining subsidiaries and another mining company over the right to mine certain areas. The mining company which brought this claim mines gold in the same area in which our subsidiary mines aggregates. The dispute centered on two agreements entered into by the parties in 1989 and 1992 that address the rights and obligations of the parties with respect to the areas in which both companies mine. In the arbitration, the gold mining company claimed that our subsidiary's operations in a limited area (which are conducted through a licensee) interfered with the gold mining company's right under the agreements to mine gold and that the gold in that area was therefore no longer recoverable.

The arbitration panel convened in November 2011 and resulting proceeding was concluded in December 2011, although the decision was not announced until January 19, 2012. The arbitration panel ruled against us and awarded $6.9 million to the other mining company plus attorneys' fees and arbitration costs to the other party of approximately $1.2 million. All amounts were paid during February 2012. This amount, together with our legal expenses incurred defending this claim, is classified as Other Non-Operating Expense in our Consolidated Statements of Earnings for the fiscal year ended March 31, 2012. The ruling involves a limited area within our California aggregates deposit and is not expected to have a material adverse impact on our continuing operations in future periods.

There is also a pending lawsuit in state court filed by the same claimant/mining company based on the same facts and circumstances which were the subject of the arbitration. While we believe that the resolution of the arbitration hearing substantially addresses the claims in the state lawsuit and that the incurrence of any further material loss in this case is remote, we are currently unable to determine the outcome of this lawsuit or the impact of an unfavorable ruling on our financial position, results of operations or cash flows.

We have certain deductible limits under our workers' compensation and liability insurance policies for which reserves are established based on the estimated costs of known and anticipated claims. We have entered into standby letter of credit agreements to secure funding obligation on retentions relating to workers' compensation and auto and general liability self-insurance. At March 31, 2012, we had contingent liabilities under these outstanding letters of credit of approximately $9.0 million.

The following table compares insurance accruals and payments for our operations:


	For the Years Ended March 31,
	2012			2011
	(dollars in thousands)
Accrual Balances at Beginning of Period	$	6,639		$	6,384
Insurance Expense Accrued		2,083			2,947
Payments		(3,654	)		(2,692	)

Accrual Balance at End of Period	$	5,068		$	6,639

We are currently contingently liable for performance under $10.4 million in performance bonds required by certain states and municipalities, and their related agencies. The bonds are principally for certain reclamation obligations and mining permits. We have indemnified the underwriting insurance company against any exposure under the performance bonds. In our past experience, no material claims have been made against these financial instruments.

In the ordinary course of business, we execute contracts involving indemnifications that are standard in the industry and indemnifications specific to a transaction such as the sale of a business. These indemnifications might include claims relating to any of the following: environmental and tax matters; intellectual property rights; governmental regulations and employment-related matters; customer, supplier, construction contractor and other commercial contractual relationships; and financial matters. While the maximum amount to which we may be exposed under such agreements cannot be estimated, it is the opinion of management that these indemnifications are not expected to have a material adverse effect on the Company's consolidated financial position, results of operations or cash flows. We currently have no outstanding guarantees of third party debt.

Our paperboard operation, Republic Paperboard Company LLC ("Republic"), is a party to a long-term paper supply agreement with St. Gobain pursuant to which Republic is obligated to sell to St. Gobain at least 90% of the gypsum-grade recycled paperboard requirements for three of St. Gobain's wallboard plants. This comprises approximately 15% to 20% of Republic's current annual output of gypsum-grade recycled paperboard.

We have certain forward purchase contracts, primarily for natural gas, that expire during calendar 2012. The contracts are for approximately 25% of our anticipated natural gas usage.

We have certain operating leases covering manufacturing, transportation and certain other facilities and equipment. Rental expense for fiscal years 2012, 2011 and 2010 totaled $1.7 million, $2.0 million and $2.1 million, respectively. Minimum annual rental commitments as of March 31, 2012, under noncancellable leases are set forth as follows (dollars in thousands):


Fiscal Year	Amount
2013	$	812
2014	$	859
2015	$	888
2016	$	888
2017	$	1,176
Thereafter	$	10,782

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Stock Option Plans

12 Months Ended

Mar. 31, 2012

Stock Option Plans [Abstract]

Stock Option Plans

(I) Stock Option Plans

On January 8, 2004, our stockholders approved a new incentive plan (the "Plan") that combined and amended the two previously existing stock option plans. In August 2009, our shareholders approved an amendment to the Plan which, among other things, increased the number of shares available for award under the Plan by 3.0 million shares. Under the terms of the Plan, we can issue equity awards, including stock options, restricted stock units ("RSUs"), restricted stock and stock appreciation rights (collectively, the "Equity Awards") to employees of the Company and members of the Board of Directors. The Compensation Committee of our Board of Directors specifies the terms for grants of Equity Awards under the Plan.

Long-Term Compensation Plans –

Options. During August 2011 and 2010, we granted options to members of the Board of Directors (the "Board of Directors Grants"). Options granted under the Board of Directors Grants vested immediately, and can be exercised from the date of grant until their expiration at the end of ten years and seven years, respectively.

In June 2011, the Compensation Committee of the Board of Directors approved an incentive equity award of an aggregate of 352,829 stock options pursuant to the Plan to certain individuals that vest ratably over a three year period (the "Fiscal 2012 Employee Stock Option Grant"). The options have a term of ten years from the date of grant. In May 2010, the Compensation Committee of the Board of Directors approved an incentive equity award of an aggregate of 163,000 performance-vesting stock options pursuant to the Plan to certain individuals, of which approximately 118,000 were earned at March 31, 2011. For those options earned based on the specified performance criteria, one third vested immediately, one third vested on March 31, 2012 and the final third will vest on March 31, 2013. The options have a term of ten years from the date of grant.

All stock options issued during fiscal 2012 and 2011 were valued at the grant date using the Black-Scholes option pricing model. The weighted-average assumptions used in the Black-Scholes model to value the option awards in fiscal 2012 and 2011 are as follows:


	2012			2011
Dividend Yield		2.0	%		2.0	%
Expected Volatility		41.9	%		42.3	%
Risk Free Interest Rate		2.5	%		2.8	%
Expected Life		8.0 years			7.0 years

Stock option expense for all outstanding stock option awards was approximately $1.4 million, $0.8 million and $2.4 million, for the years ended March 31, 2012, 2011 and 2010, respectively. The expense for fiscal 2012 and 2011 reflects credits of $1.3 million and $1.1 million, respectively; resulting from our updated assessment of future compliance with performance conditions associated with certain stock option grants. At March 31, 2012, there was approximately $3.3 million of unrecognized compensation cost related to outstanding stock options which is expected to be recognized over a weighted-average period of 1.9 years.

The following table represents stock option activity for the years presented:


	For the Years Ended March 31,
	2012					2011					2010
	Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price
Outstanding Options at Beginning of Year		3,323,786		$	35.60		3,446,452		$	33.97		3,568,431		$	33.32
Granted		474,124		$	26.41		269,502		$	28.45		138,651		$	27.72
Exercised		(383,811	)	$	18.57		(388,214	)	$	15.94		(136,230	)	$	27.09
Cancelled		(172,777	)	$	38.69		(3,954	)	$	58.93		(124,400	)	$	32.83

Outstanding Options at End of Year		3,241,322		$	36.11		3,323,786		$	35.60		3,446,452		$	33.97

Options Exercisable at End of Year		1,567,734					1,735,911					1,976,852

Weighted Average Fair Value of Options Granted during the Year				$	10.29				$	10.88				$	9.38

The following table summarizes information about stock options outstanding at March 31, 2012:


	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number of Shares Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Number of Shares Outstanding		Weighted Average Exercise Price
$11.56 - $13.43		88,536		1.12	$	11.74		88,536	$	11.74
$23.30 - $29.08		1,517,477		5.67	$	26.69		1,134,289	$	26.29
$34.09 - $40.78		308,170		1.67	$	37.91		277,770	$	38.07
$47.53 - $62.83		1,327,139		2.28	$	48.09		67,139	$	58.42

		3,241,322			$	36.11		1,567,734	$	28.93

At March 31, 2012 there was no net intrinsic value for outstanding options. The aggregate intrinsic value for exercisable stock options at that date was approximately $9.1 million. During the year ended March 31, 2012, the total intrinsic value of options exercised was approximately $5.6 million.

Restricted Stock Units. In May 2010, the same employees receiving stock options also received an aggregate of 207,500 performance based RSUs. The vesting criteria for the RSUs were the same as the vesting criteria for the Fiscal 2011 Employee Stock Option Grant, and approximately 57,000 RSUs were forfeited at March 31, 2011. The value of the RSUs, net of expected forfeitures, is being expensed ratably over three years. There were no grants of RSUs made during fiscal 2012. Expense related to RSUs was approximately $1.5 million, $1.6 million and $0.4 million in fiscal years ended March 31, 2012, 2011 and 2010, respectively. At March 31, 2012, there were approximately 80,000 unvested RSUs, with approximately $1.7 million of unearned compensation, net of estimated forfeitures, which will be recognized over a weighted-average period of 1.3 years.

Restricted Stock. In June 2011, the Compensation Committee also approved the granting of an aggregate of 412,164 shares of restricted stock to certain key employees at both the corporate and subsidiary level that would be earned if our ten year average return on invested capital exceeded 12% at March 31, 2012. If the performance criterion was not met, all shares would have been forfeited. The Compensation Committee has certified that the performance criterion had been met at March 31, 2012; therefore, all shares were earned. Restrictions on the shares will lapse ratably over five years, with the first fifth lapsing immediately, and the remaining restrictions lapsing on March 31, 2013 through 2016. In May 2010, the Compensation Committee approved the granting of an aggregate of 274,166 shares of performance based restricted stock to certain key employees at both the corporate and subsidiary level that would be earned if our ten year average return on equity exceeds 17.25% at March 31, 2011. As this criterion was met, all shares were earned; however, these shares will continue to have restrictions preventing the holder from selling, pledging, transferring or otherwise disposing of the shares until the holder satisfies the criteria for "retirement". Retirement, as related to the restricted shares, is defined as the shortest time frame of the following: a) the holder reaches the age of 65 and has more than ten years' service; b) expiration of five years from the date of grant, and the holder has more than 25 years of service; or c) fifteen years from the date of grant. The value of the restricted shares, net of estimated forfeitures, is being expensed over each individual grantee's retirement period. Expense related to restricted shares was $2.6 million, $1.0 million and $0.2 million in fiscal years ended March 31, 2012, 2011 and 2010, respectively. At March 31, 2012, there were 660,000 shares with remaining restrictions for which $13.7 million of unearned compensation, net of estimated forfeitures, will be recognized over a weighted-average period of 4.9 years.

Shares available for future stock option, restricted stock and restricted stock unit grants were 1,903,105 at March 31, 2012. Of the available shares, up to 179,858 can be used for future restricted stock and restricted stock unit grants.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Pension And Profit Sharing Plans

12 Months Ended

Mar. 31, 2012

Pension And Profit Sharing Plans [Abstract]

Pension And Profit Sharing Plans

(J) Pension and Profit Sharing Plans

We have several defined benefit and defined contribution retirement plans which together cover substantially all of our employees. We are not a party to any multi-employer pension plan. Benefits paid under the defined benefit plans covering certain hourly employees are based on years of service and the employee's qualifying compensation over the last few years of employment. Our funding policy is to generally contribute amounts that are deductible for income tax purposes. The annual measurement date is March 31 for the benefit obligations, fair value of plan assets and the funded status of the defined benefit plans.

The following table provides a reconciliation of the obligations and fair values of plan assets for all of our defined benefit plans over the two year period ended March 31, 2012 and a statement of the funded status as of March 31, 2012 and 2011:


	For the Years Ended March 31,
	2012			2011
	(dollars in thousands)
Reconciliation of Benefit Obligations -
Benefit Obligation at April 1,	$	20,266		$	19,059
Service Cost—Benefits Earned During the Period		561			557
Interest Cost on Projected Benefit Obligation		1,104			1,060
Actuarial (Gain) Loss		3,462			194
Benefits Paid		(658	)		(604	)

Benefit Obligation at March 31,	$	24,735		$	20,266

Reconciliation of Fair Value of Plan Assets -
Fair Value of Plan Assets at April 1,	$	16,517		$	14,642
Actual Return on Plan Assets		445			1,886
Employer Contributions		1,006			593
Benefits Paid		(658	)		(604	)

Fair Value of Plans at March 31,		17,310			16,517

Funded Status -
Unfunded Status at March 31,	$	(7,425	)	$	(3,749	)

Amounts Recognized in the Balance Sheet Consist of -
Accrued Benefit Liability	$	(7,425	)	$	(3,749	)
Accumulated Other Comprehensive Losses:
Net Actuarial Loss		8,443			4,375
Prior Service Cost		43			75

Accumulated Other Comprehensive Losses		8,486		$	4,450
Tax impact		(2,970	)		(1,557	)

Accumulated Other Comprehensive Losses, net of tax	$	5,516		$	2,893

Information for pension plans with an accumulated benefit obligation in excess of plan assets:


	March 31,
	2012		2011
	(dollars in thousands)
Projected Benefit Obligation	$	24,735	$	20,266
Accumulated Benefit Obligation	$	24,706	$	20,226
Fair Value of Plan Assets	$	17,310	$	16,517

Net periodic pension cost for the fiscal years ended March 31, 2012, 2011 and 2010, included the following components:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Service Cost - Benefits Earned During the Period	$	561		$	557		$	538
Interest Cost of Projected Benefit Obligation		1,104			1,060			1,024
Expected Return on Plan Assets		(1,293	)		(1,163	)		(826	)
Recognized Net Actuarial Loss		242			354			774
Amortization of Prior-Service Cost		33			80			130

Net Periodic Pension Cost	$	647		$	888		$	1,640

Expected benefit payments over the next five years, and the following five years under the pension plans are expected to be as follows (in thousands):


Fiscal Years	Total
2013	$	900
2014	$	990
2015	$	1,091
2016	$	1,129
2017	$	1,207
2018-2022	$	7,535

The following table sets forth the assumptions used in the actuarial calculations of the present value of net periodic benefit cost and benefit obligations:


	March 31,
	2012			2011			2010
Net Periodic Benefit Costs -
Discount Rate		5.61	%		5.75	%		6.00	%
Expected Return on Plan Assets		8.00	%		8.00	%		8.00	%
Rate of Compensation Increase		3.50	%		3.50	%		3.50	%


	March 31,
	2012			2011
Benefit Obligations -
Discount Rate		4.56	%		5.61	%
Rate of Compensation Increase		3.50	%		3.50	%

The expected long-term rate of return on plan assets is an assumption reflecting the anticipated weighted-average rate of earnings on the portfolio over the long-term. To arrive at this rate, we developed estimates of the key components underlying capital asset returns including: market-based estimates of inflation, real risk-free rates of return, yield curve structure, credit risk premiums and equity risk premiums. As appropriate, these components were used to develop benchmark estimates of the expected long-term management approach employed by us, and a return premium was added to the weighted-average benchmark portfolio return.

The pension plans' approximate weighted-average asset allocation at March 31, 2012 and 2011 and the range of target allocation are as follows:


	Range of Target			Percentage of Plan Assets at March 31,
	Allocation			2012			2011
Asset Category -
Equity Securities		40 – 60	%		60	%		60	%
Debt Securities		35 – 60	%		30	%		30	%
Other		0 – 5	%		10	%		10	%

Total					100	%		100	%

Our pension investment strategies have been developed as part of a comprehensive asset/liability management process that considers the interaction between both the assets and liabilities of the plan. These strategies consider not only the expected risk and returns on plan assets, but also the detailed actuarial projections of liabilities as well as plan-level objectives such as projected contributions, expense and funded status.

The principal pension investment strategies include asset allocation and active asset management. The range of target asset allocations have been determined after giving consideration to the expected returns of each asset class, the expected variability or volatility of the asset class returns over time, and the complementary nature or correlation of the asset classes within the portfolio. We also employ an active management approach for the portfolio. Each asset class is managed by one or more external money managers with the objective of generating returns, net of management fees that exceed market-based benchmarks. None of the plans hold any EXP stock.

Based on our current actuarial estimates, we anticipate making contributions ranging from approximately $0.5 million to $1.0 million to our defined benefit plans for fiscal year 2013.

The fair values of our defined benefit plans' consolidated assets by category as of March 31, 2012 were as follows:


	March 31,
	2012		2011
	(dollars in thousands)
Equity Securities	$	9,808	$	9,785
Fixed Income Securities		4,914		4,711
Real Estate Funds		466		487
Commodity Linked Funds		710		807
Hedge Funds		303		—
Cash Equivalents		1,109		727

Total	$	17,310	$	16,517

The fair values of our defined benefit plans' consolidated assets were determined using the fair value hierarchy of inputs described in Note (A).

The fair values by category of inputs as of March 31, 2012 were as follows:


Asset Categories	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(dollars in thousands)
Equity Securities ⁽¹⁾	$	—	$	9,808	$	—	$	9,808
Fixed Income Securities ⁽²⁾		—		4,914		—		4,914
Real Estate Funds ⁽²⁾		—		466		—		466
Commodity Linked Funds ⁽²⁾		—		710		—		710
Hedge Funds ⁽²⁾		—		303		—		303
Cash Equivalents		1,109		—		—		1,109

	$	1,109	$	16,201	$	—	$	17,310

The fair values by category of inputs as of March 31, 2011 were as follows:


Asset Categories	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(dollars in thousands)
Equity Securities ⁽¹⁾	$	—	$	9,785	$	—	$	9,785
Fixed Income Securities ⁽²⁾		—		4,711		—		4,711
Real Estate Funds ⁽²⁾		—		487		—		487
Commodity Linked Funds ⁽²⁾		—		807		—		807
Cash Equivalents		727		—		—		727

	$	727	$	15,790	$	—	$	16,517

⁽¹⁾	These funds are maintained by an investment manager and are primarily invested in indexes.

⁽²⁾	Primarily consists of investments in institutional funds.

We previously classified a portion of our equity securities and fixed income securities, and all of our real estate funds and commodity linked funds using Level 1 inputs. We have determined that the pricing method for these investments is based on funds which are not widely traded. Accordingly, such investments held in prior periods have been corrected to Level 2 to conform to the current year presentation. The reclassification had no impact on the fair value of the investments in any of the periods presented.

We also provide a profit sharing plan, which covers substantially all salaried and certain hourly employees. The profit sharing plan is a defined contribution plan funded by employer discretionary contributions and also allows employees to contribute on an after-tax basis up to 10% of their base annual salary. Employees are fully vested to the extent of their contributions at all times. Employees become fully vested in our contributions over a seven year period for contributions made prior to 2007, and over a six year period for contributions made beginning in 2007. Costs relating to the employer discretionary contributions for our contribution plan totaled $2.5 million, $2.5 million and $1.7 million in fiscal years 2012, 2011 and 2010, respectively.

Employees who became employed by us as a result of a previous transaction are provided benefits substantially comparable to those provided under the seller's welfare plans. These welfare plans included the seller's 401(k) plan which included employer matching percentages. As a result, we made matching contributions to its 401(k) plan totaling $0.1 million for these employees during each of the fiscal years 2012, 2011 and 2010.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
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-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

+ Details

Net Interest Expense

12 Months Ended

Mar. 31, 2012

Net Interest Expense [Abstract]

Net Interest Expense

(K) Net Interest Expense

The following components are included in interest expense, net:


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Interest Income	$	(6	)	$	(7	)	$	(41	)
Interest Expense		16,969			17,742			18,414
Interest Expense (Income) – IRS		(903	)		(1,468	)		2,741
Other Expenses		561			253			346

Interest Expense, net	$	16,621		$	16,520		$	21,460

Interest income includes interest on investments of excess cash. Components of interest expense include interest associated with the Senior Notes, the bank credit facilities and commitment fees based on the unused portion of the bank credit facilities. Other expenses include amortization of debt issuance costs, and bank credit facility costs.

Interest expense (income) – IRS relates to interest accrued on our unrecognized tax benefits, primarily related to the Republic Asset Acquisition. During fiscal 2011, we paid or applied cash deposits as payments to the IRS and filed amended state tax returns and made payments for the tax years 2001 through 2006, resulting in an adjustment of previously accrued interest expense of approximately $2.8 million. During fiscal 2012, we reversed previously accrued interest expense for certain matters for which the statute of limitations had expired.

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Mar. 31, 2012
Stockholders' Equity [Abstract]
Stockholders' Equity	(L) Stockholders' Equity On January 8, 2004, our stockholders approved an amendment to our certificate of incorporation to increase the authorized number of shares of capital stock that we may issue from 50,000,000 shares of common stock and 2,000,000 shares of preferred stock to 100,000,000 shares of common stock and 5,000,000 shares of preferred stock. The amendment to the Certificate of Incorporation became effective on January 30, 2004. Our Board of Directors designated 40,000 shares of preferred stock for use in connection with the Rights Agreement discussed below. Effective February 2, 2004, we entered into a Rights Agreement as amended and restated on April 11, 2006 (as amended and restated, "Rights Agreement") that was approved by stockholders at the Special Meeting of Stockholders held on January 8, 2004. In connection with the Rights Agreement, the Board authorized and declared a dividend of one right per share of common stock (the "Common Stock"). The Rights entitle our stockholders to purchase Common Stock (the "Rights") in the event certain efforts are made to acquire control of the Company. There are no separate certificates or market for the Rights. The Rights are represented by and trade with our Common Stock. The Rights will separate from the Common Stock upon the earlier of: (1) a public announcement that a person has acquired beneficial ownership of shares of Common Stock representing in the aggregate 15% or more of the total number of votes entitled to be cast generally by the holders of Common Stock then outstanding, or (2) the commencement of a tender or exchange offer that would result in a person beneficially owning shares of Common Stock representing in the aggregate 15% or more of the total number of votes entitled to be cast generally by the holders of Common Stock then outstanding. Should either of these conditions be met and the Rights become exercisable, each Right will entitle the holder to buy 1/1,000^th of a share of our Preferred Stock at an exercise price of $140.00. Each 1/1,000^th of a share of the Preferred Stock will essentially be the economic equivalent of three shares of Common Stock. Under certain circumstances, the Rights entitle the holders to buy our stock or shares of the acquirer's stock at a 50% discount. The Rights may be redeemed by us for $0.001 per Right at any time prior to the first public announcement of the acquisition of beneficial ownership of shares of Common Stock representing 15% or more of the total number of votes entitled to be cast generally by the holders of Common Stock then outstanding. If not redeemed, the Rights will expire on January 7, 2014.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
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Reference 20: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

+ Details

Quarterly Results

12 Months Ended

Mar. 31, 2012

Quarterly Results [Abstract]

Quarterly Results

(M) Quarterly Results (unaudited)


	For the Years Ended March 31,
	2012		2011
	(dollars in thousands, except per share data)
First Quarter -
Revenues	$	119,807	$	130,794
Gross Profit		4,373		16,431
Earnings Before Income Taxes		1,039		14,667
Net Earnings		807		10,527
Diluted Earnings Per Share	$	0.02	$	0.24
Second Quarter -
Revenues	$	134,819	$	132,135
Gross Profit		8,717		13,549
Earnings Before Income Taxes		7,739		10,321
Net Earnings		6,025		9,630
Diluted Earnings Per Share	$	0.14	$	0.22
Third Quarter -
Revenues	$	123,596	$	103,870
Gross Profit		12,471		7,840
Earnings Before Income Taxes		489		6,620
Net Earnings		2,897		5,496
Diluted Earnings Per Share	$	0.07	$	0.12
Fourth Quarter -
Revenues	$	116,801	$	95,381
Gross Profit (Loss)		14,916		(2,243	)
Earnings Before Income Taxes		12,645		(14,846	)
Net Earnings		9,003		(10,804	)
Diluted Earnings Per Share	$	0.20	$	(0.25	)

The third quarter of fiscal 2012 includes non-operating expense of $9.1 million relating to a loss in arbitration. See Footnote (H), Commitments and Contingencies for more information. Earnings before income taxes in the fourth quarter of fiscal 2012 were stronger due to increased prices and sales volumes, offset by $2.0 million of additional maintenance costs for our cement business during the fourth quarter of fiscal 2012, as compared to fiscal 2011.

The fourth quarter of fiscal 2011 includes other non-operating expense of $10.7 million. During the fourth quarter of fiscal 2011, we determined that we would not move forward with the planned expansion of Nevada Cement Company. This decision was based on the economic impact of new environmental regulations combined with the challenging market conditions in northern Nevada and Northern California. As a result of this decision, we wrote-off approximately $8.9 million during fiscal 2011. The remaining expense consists of the write-down of unused aggregate equipment at our Texas operation and other miscellaneous write-downs. Additionally, our fourth quarter cement operating costs increased approximately $5.0 million due to an expanded plant shut-down at our Illinois cement facility and exceptionally harsh winter weather in the Midwest.

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References + Details

Significant Accounting Policies (Policy)

12 Months Ended

Mar. 31, 2012

Significant Accounting Policies [Abstract]

Basis Of Presentation

Basis of Presentation –

We evaluated all events or transactions that occurred after March 31, 2012 through the filing of these financial statements.

Reclassifications

<div> Reclassifications – Certain prior period reclassifications have been made to conform to the current period presentation.</div>

Cash And Cash Equivalents

Cash and Cash Equivalents –

Cash equivalents include short-term, highly liquid investments with original maturities of three months or less and are recorded at cost, which approximates market value.

Accounts And Notes Receivable

Accounts and Notes Receivable –

Inventories

Inventories –

Inventories are stated at the lower of average cost (including applicable material, labor, depreciation, and plant overhead) or market. Inventories consist of the following:


	March 31,
	2012		2011
	(dollars in thousands)
Raw Materials and Materials-in-Progress	$	46,336	$	36,497
Finished Cement		10,391		11,540
Gypsum Wallboard		6,215		6,347
Aggregates		14,155		12,419
Paperboard		2,443		5,274
Repair Parts and Supplies		40,352		40,280
Fuel and Coal		3,714		2,880

	$	123,606	$	115,237

Property, Plant And Equipment

Property, Plant and Equipment –



Plants			20 to 30 years

Buildings			20 to 40 years

Machinery and Equipment			3 to 25 years

Impairment Or Disposal Of Long-Lived Assets

Impairment or Disposal of Long-Lived Assets –

Goodwill And Intangible Assets

Goodwill and Intangible Assets –


	March 31, 2012
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(983	)	$	317
Permits		40 years		22,000		(3,930	)		18,070
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,913	)	$	150,902


	March 31, 2011
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(896	)	$	404
Permits		40 years		22,000		(3,380	)		18,620
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,276	)	$	151,539

Amortization expense of intangibles was $0.6 million for each of the years ended March 31, 2012, 2011 and 2010.

Other Assets

Other Assets –

Other assets are primarily composed of loan fees and financing costs, deferred expenses, and deposits.

Income Taxes

Income Taxes –

Stock Repurchases

Stock Repurchases –

Revenue Recognition

Revenue Recognition –

Comprehensive Income/Losses

Comprehensive Income/Losses –

A summary of comprehensive income for the fiscal years ended March 31, 2012, 2011 and 2010 is presented below:


	For the Years Ended March 31,
	2012			2011		2010
	(dollars in thousands)
Net Earnings	$	18,732		$	14,849	$	28,950
Other Comprehensive Income , net of tax:
Pension Plan Actuarial Gain (Loss), net of tax		(2,623	)		625		2,522

Comprehensive Income	$	16,109		$	15,474	$	31,472

Consolidated Cash Flows - Supplemental Disclosures

Consolidated Cash Flows – Supplemental Disclosures –

Interest payments made during the years ended March 31, 2012, 2011 and 2010 were $18.8 million, $18.1 million and $21.4 million, respectively.

Statements Of Consolidated Earnings - Supplemental Disclosures

Statements of Consolidated Earnings – Supplemental Disclosures –

Total selling, general and administrative expenses for each of the periods are summarized as follows:


	For the Years Ended March 31,
	2012		2011		2010
	(dollars in thousands)
Operating Units Selling, G&A	$	27,695	$	26,812	$	29,064
Corporate G&A		19,617		16,667		15,886

	$	47,312	$	43,479	$	44,950

During fiscal 2012, we repurchased $88.1 million of our senior debt at a premium, which was recorded inclusive of transaction costs. The amount of the premium plus transaction costs was $2.1 million.

Earnings Per Share

Earnings Per Share –


	For the Years Ended March 31,
	2012			2011			2010
Weighted-Average Shares of Common Stock Outstanding		44,224,924			43,891,817			43,684,942
Effect of Dilutive Shares:
Assumed Exercise of Outstanding Dilutive Options		800,748			1,186,064			1,026,667
Less Shares Repurchased from Proceeds of Assumed Exercised Options⁽¹⁾		(652,046	)		(934,328	)		(745,235	)
Restricted Stock Units		142,355			107,723			72,027

Weighted-Average Common Stock and Dilutive Securities Outstanding		44,515,981			44,251,276			44,038,401

⁽¹⁾	Includes unearned compensation related to outstanding stock options.

Fair Value Measures

Fair Value Measures

Level 1 – Quoted prices for identical assets and liabilities in active markets;

New Accounting Standards

<div class="MetaData"> New Accounting Standards – In May 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. This ASU clarifies the application of certain existing fair value measurement guidance and expands the disclosures for fair value measurements that are estimated using significant unobservable (Level 3) inputs. This guidance is effective for interim and annual periods beginning on or after December 15, 2011, applied prospectively. The adoption of this guidance did not have a material impact on our consolidated financial statements. In June 2011, the FASB issued ASU 2011-05, Presentation of Comprehensive Income, which requires comprehensive income to be reported in either a single statement of comprehensive income or in separate, consecutive statements reporting net income and other comprehensive income. In December 2011, the FASB issued ASU 2011-12 which defers the effective date of the requirement in ASU 2011-05 to present separate line items on the income statement for reclassification adjustments of items out of accumulated other comprehensive income into net income. Retrospective application is required and both ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We will adopt this Standard during our fiscal first quarter ended June 30, 2012. </div>

Other Non Operating Expense

Other Non Operating Expense –

Adjustment For Reversal Of Accrual

Adjustment for Reversal of Accrual

Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2012

Significant Accounting Policies [Abstract]

Schedule Of Inventories


	March 31,
	2012		2011
	(dollars in thousands)
Raw Materials and Materials-in-Progress	$	46,336	$	36,497
Finished Cement		10,391		11,540
Gypsum Wallboard		6,215		6,347
Aggregates		14,155		12,419
Paperboard		2,443		5,274
Repair Parts and Supplies		40,352		40,280
Fuel and Coal		3,714		2,880

	$	123,606	$	115,237

Schedule Of Property, Plant And Equipment Estimated Lives



Plants			20 to 30 years

Buildings			20 to 40 years

Machinery and Equipment			3 to 25 years

Schedule Of Goodwill And Intangible Assets


	March 31, 2012
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(983	)	$	317
Permits		40 years		22,000		(3,930	)		18,070
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,913	)	$	150,902


	March 31, 2011
	Amortization Period		Cost		Accumulated Amortization			Net
	(dollars in thousands)
Intangible Assets Subject to Amortization:
Customer contracts		15 years	$	1,300	$	(896	)	$	404
Permits		40 years		22,000		(3,380	)		18,620
Goodwill				132,515		—			132,515

Total intangible assets and goodwill			$	155,815	$	(4,276	)	$	151,539

Summary Of Comprehensive Income


	For the Years Ended March 31,
	2012			2011		2010
	(dollars in thousands)
Net Earnings	$	18,732		$	14,849	$	28,950
Other Comprehensive Income , net of tax:
Pension Plan Actuarial Gain (Loss), net of tax		(2,623	)		625		2,522

Comprehensive Income	$	16,109		$	15,474	$	31,472

Schedule Of Total Selling, General And Administrative Expenses


	For the Years Ended March 31,
	2012		2011		2010
	(dollars in thousands)
Operating Units Selling, G&A	$	27,695	$	26,812	$	29,064
Corporate G&A		19,617		16,667		15,886

	$	47,312	$	43,479	$	44,950

Schedule Of Earnings Per Share


	For the Years Ended March 31,
	2012			2011			2010
Weighted-Average Shares of Common Stock Outstanding		44,224,924			43,891,817			43,684,942
Effect of Dilutive Shares:
Assumed Exercise of Outstanding Dilutive Options		800,748			1,186,064			1,026,667
Less Shares Repurchased from Proceeds of Assumed Exercised Options⁽¹⁾		(652,046	)		(934,328	)		(745,235	)
Restricted Stock Units		142,355			107,723			72,027

Weighted-Average Common Stock and Dilutive Securities Outstanding		44,515,981			44,251,276			44,038,401

⁽¹⁾	Includes unearned compensation related to outstanding stock options.

Property, Plant And Equipment (Tables)

12 Months Ended

Mar. 31, 2012

Property, Plant And Equipment [Abstract]

Schedule Of Property, Plant And Equipment


	March 31,
	2012			2011
	(dollars in thousands)
Land and Quarries	$	81,175		$	68,185
Plants		958,985			956,402
Buildings, Machinery and Equipment		96,954			85,117
Construction in Progress		3,630			5,354

		1,140,744			1,115,058
Accumulated Depreciation		(560,236	)		(512,228	)

	$	580,508		$	602,830

Accrued Expenses (Tables)

12 Months Ended

Mar. 31, 2012

Accrued Expenses [Abstract]

Schedule Of Accrued Expenses


	March 31,
	2012		2011
	(dollars in thousands)
Payroll and Incentive Compensation	$	7,320	$	7,712
Benefits		8,583		7,988
Interest		4,904		7,003
Insurance		5,068		6,639
Property Taxes		3,865		4,033
Other		3,879		5,812

	$	33,619	$	39,187

Indebtedness (Tables)

12 Months Ended

Mar. 31, 2012

Debt Instrument [Line Items]

Schedule Of Components Of Long-Term Debt


	As of
	March 31, 2012			March 31, 2011
	(dollars in thousands)
Bank Credit Facility	$	70,000		$	2,000
Senior Notes		196,936			285,000

Total Debt		266,936			287,000
Less: Current Portion of Long-term Debt		(4,677	)		—

Long-term Debt	$	262,259		$	287,000

Schedule Of Maturities Of Long-Term Debt


Fiscal Year	Amount
2013	$	4,677
2014		—
2015		9,500
2016		127,045
2017		8,000
Thereafter		117,714

Total	$	266,936

2005 Note Purchase Agreement [Member]

Debt Instrument [Line Items]

Schedule Of Repurchases Of Outstanding Tranches


	Principal		Maturity Date		Interest Rate
Tranche A	$	4.7 million		November 15, 2012		5.25	%
Tranche B	$	57.0 million		November 15, 2015		5.38	%
Tranche C	$	57.2 million		November 15, 2017		5.48	%

2007 Note Purchase Agreement [Member]

Debt Instrument [Line Items]

Schedule Of Repurchases Of Outstanding Tranches


	Principal		Maturity Date		Interest Rate
Tranche A	$	9.5 million		October 2, 2014		6.08	%
Tranche B	$	8.0 million		October 2, 2016		6.27	%
Tranche C	$	24.0 million		October 2, 2017		6.36	%
Tranche D	$	36.5 million		October 2, 2019		6.48	%

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher FASB
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-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

+ Details

Fair Value Of Financial Instruments (Tables)

12 Months Ended

Mar. 31, 2012

Fair Value Of Financial Instruments [Abstract]

Schedule Of Fair Value Of Senior Notes


	Fair Value
	(dollars in thousands)
Series 2005A Tranche A	$	4,724
Series 2005A Tranche B		58,671
Series 2005A Tranche C		58,267
Series 2007A Tranche A		9,922
Series 2007A Tranche B		8,511
Series 2007A Tranche C		25,440
Series 2007A Tranche D		38,705

Business Segments (Tables)

12 Months Ended

Mar. 31, 2012

Business Segments [Abstract]

Schedule Of Financial Information Related To Operations By Segment


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Revenues -
Cement	$	243,978		$	225,784		$	228,475
Gypsum Wallboard		217,633			204,560			210,671
Paperboard		118,794			104,775			90,164
Concrete and Aggregates		45,515			44,236			45,622

		625,920			579,355			574,932
Less: Intersegment Revenues		(44,757	)		(42,263	)		(41,589	)
Less: Joint Venture Revenues		(86,140	)		(74,912	)		(65,438	)

	$	495,023		$	462,180		$	467,905


	For the Years Ended March 31,
	2012		2011		2010
	(dollars in thousands)
Intersegment Revenues -
Cement	$	3,605	$	4,086	$	4,449
Paperboard		40,485		37,622		36,369
Concrete and Aggregates		667		555		771

	$	44,757	$	42,263	$	41,589

Cement Sales Volumes (M tons) -
Wholly-Owned		1,857		1,718		1,754
Joint Venture		866		823		713

		2,723		2,541		2,467


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Operating Earnings -
Cement	$	46,850		$	45,688		$	58,007
Gypsum Wallboard		6,264			1,242			1,383
Paperboard		16,988			12,086			14,805
Concrete and Aggregates		(1,097	)		794			1,835
Other, net		356			840			3,161

Sub-Total		69,361			60,650			79,191
Corporate General and Administrative		(19,617	)		(16,667	)		(15,886	)
Other Corporate Charges		(9,117	)		(10,701	)		(2,548	)

Earnings Before Interest and Income Taxes		40,627			33,282			60,757
Loss on Debt Retirement		(2,094	)		—			—
Interest Expense, net		(16,621	)		(16,520	)		(21,460	)

Earnings Before Income Taxes	$	21,912		$	16,762		$	39,297


Cement Operating Earnings -
Wholly-Owned	$	18,322		$	21,455		$	33,850
Joint Ventures		28,528			24,233			24,157

	$	46,850		$	45,688		$	58,007

Identifiable Assets -
Cement	$	313,559		$	304,693		$	308,606
Gypsum Wallboard		434,967			446,174			466,426
Paperboard		137,483			144,434			149,602
Aggregates		49,009			39,907			39,975
Concrete		12,031			11,890			11,812
Corporate and Other		38,096			38,712			37,355

	$	985,145		$	985,810		$	1,013,776

Capital Expenditures -
Cement	$	7,753		$	9,395		$	12,744
Gypsum Wallboard		3,357			2,190			184
Paperboard		919			1,447			236
Aggregates		13,639			3,416			445
Concrete		321			351			75
Other, net		110			425			95

	$	26,099		$	17,224		$	13,779

Depreciation, Depletion and Amortization
Cement	$	15,373		$	14,468		$	14,683
Gypsum Wallboard		20,903			21,463			22,328
Paperboard		8,595			8,800			9,090
Aggregates		3,365			3,004			2,921
Concrete		1,022			836			1,054
Other, net		866			641			705

	$	50,124		$	49,212		$	50,781

Schedule Of Goodwill


	For the Years Ended March 31,
	2012		2011
	(dollars in thousands)
Cement	$	8,359	$	8,359
Gypsum Wallboard		116,618		116,618
Paperboard		7,538		7,538

	$	132,515	$	132,515

- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

+ References + Details

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Income Taxes (Tables)

12 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Schedule Of Components Of Provision For Income Taxes


	For the Years Ended March 31,
	2012		2011			2010
	(dollars in thousands)
Current Provision (Benefit) -
Federal	$	812	$	(6,450	)	$	8,872
State		180		(134	)		274

		992		(6,584	)		9,146
Deferred Provision (Benefit) -
Federal		1,984		7,919			2,493
State		204		578			(1,292	)

		2,188		8,497			1,201

Provision for Income Taxes	$	3,180	$	1,913		$	10,347

Schedule Of Effective Tax Rates Vary From Federal Statutory Rates


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Earnings Before Income Taxes	$	21,912		$	16,762		$	39,297

Income Taxes at Statutory Rate	$	7,669		$	5,866		$	13,754
Increases (Decreases) in Tax Resulting from -
State Income Taxes, net		249			289			(662	)
Statutory Depletion in Excess of Cost		(2,619	)		(2,492	)		(3,180	)
Domestic Production Activities Deduction		36			195			(495	)
Meals and Entertainment Disallowance		284			283			371
Penalties on Uncertain Tax Positions		190			400			491
Tax Benefits-ASC 740 Accruals and State Amnesty Programs		(2,558	)		(2,840	)		—
Other		(71	)		212			68

Provision for Income Taxes	$	3,180		$	1,913		$	10,347

Effective Tax Rate		15	%		11	%		26	%

Schedule Of Deferred Income Tax Provision


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Excess Tax Depreciation and Amortization	$	4,617		$	(15	)	$	187
Bad Debts		(119	)		(324	)		27
Uniform Capitalization		(1,004	)		681			139
Accrual Changes		1,107			4,135			1,493
Uncertain Tax Position Accruals		(2,264	)		5,136			—
Other		(149	)		(1,116	)		(645	)

	$	2,188		$	8,497		$	1,201

Schedule Of Components Of Deferred Income Taxes


	March 31,
	2012			2011
	(dollars in thousands)
Items Giving Rise to Deferred Tax Liabilities -
Excess Tax Depreciation and Amortization	$	(153,220	)	$	(149,652	)

Items Giving Rise to Deferred Tax Assets -
Accrual Changes		13,138			15,295
Bad Debts		1,825			1,705
Uniform Capitalization		990			(14	)
Other		3,588			2,186

Total Deferred Tax Assets	$	19,541		$	19,172

Schedule Of Income Taxes Classified In Consolidated Balance Sheet


	March 31,
	2012			2011
	(dollars in thousands)
Accrued Liabilities	$	—		$	(1,341	)

Prepaid and Other Assets		186			—

Deferred Income Taxes	$	(133,865	)	$	(129,139	)

Reconciliation Of The Consolidated Liability For Gross Unrecognized Tax Benefits


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Balance at Beginning of Year	$	28,450		$	49,107		$	70,382
Increase related to prior tax positions		534			3,734			1,424
Decrease related to prior tax positions		(2,797	)		(1,597	)		(933	)
Payments		(297	)		(22,794	)		(21,766	)

	$	25,890		$	28,450		$	49,107

Summary Of Amounts Of Interest And Penalties Recognized In Relation To Uncertain Tax Position


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Accrued interest recognized	$	(903	)	$	(1,468	)	$	2,741

Accrued penalties recognized	$	190		$	400		$	491

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References + Details

Commitments And Contingencies (Tables)

12 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Schedule Of Insurance Accruals And Payments


	For the Years Ended March 31,
	2012			2011
	(dollars in thousands)
Accrual Balances at Beginning of Period	$	6,639		$	6,384
Insurance Expense Accrued		2,083			2,947
Payments		(3,654	)		(2,692	)

Accrual Balance at End of Period	$	5,068		$	6,639

Schedule Of Minimum Annual Rental Commitments


Fiscal Year	Amount
2013	$	812
2014	$	859
2015	$	888
2016	$	888
2017	$	1,176
Thereafter	$	10,782

- Definition

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

+ References + Details

Stock Option Plans (Tables)

12 Months Ended

Mar. 31, 2012

Stock Option Plans [Abstract]

Schedule Of Weighted-Average Assumptions Used To Value The Option Awards


	2012			2011
Dividend Yield		2.0	%		2.0	%
Expected Volatility		41.9	%		42.3	%
Risk Free Interest Rate		2.5	%		2.8	%
Expected Life		8.0 years			7.0 years

Schedule Of Stock Option Activity


	For the Years Ended March 31,
	2012					2011					2010
	Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price		Number of Shares			Weighted Average Exercise Price
Outstanding Options at Beginning of Year		3,323,786		$	35.60		3,446,452		$	33.97		3,568,431		$	33.32
Granted		474,124		$	26.41		269,502		$	28.45		138,651		$	27.72
Exercised		(383,811	)	$	18.57		(388,214	)	$	15.94		(136,230	)	$	27.09
Cancelled		(172,777	)	$	38.69		(3,954	)	$	58.93		(124,400	)	$	32.83

Outstanding Options at End of Year		3,241,322		$	36.11		3,323,786		$	35.60		3,446,452		$	33.97

Options Exercisable at End of Year		1,567,734					1,735,911					1,976,852

Weighted Average Fair Value of Options Granted during the Year				$	10.29				$	10.88				$	9.38

Schedule Of Stock Options Outstanding


	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number of Shares Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Number of Shares Outstanding		Weighted Average Exercise Price
$11.56 - $13.43		88,536		1.12	$	11.74		88,536	$	11.74
$23.30 - $29.08		1,517,477		5.67	$	26.69		1,134,289	$	26.29
$34.09 - $40.78		308,170		1.67	$	37.91		277,770	$	38.07
$47.53 - $62.83		1,327,139		2.28	$	48.09		67,139	$	58.42

		3,241,322			$	36.11		1,567,734	$	28.93

Pension And Profit Sharing Plans (Tables)

12 Months Ended

Mar. 31, 2012

Pension And Profit Sharing Plans [Abstract]

Schedule Of Reconciliation Of Obligations And Fair Values Of Plan Assets


	For the Years Ended March 31,
	2012			2011
	(dollars in thousands)
Reconciliation of Benefit Obligations -
Benefit Obligation at April 1,	$	20,266		$	19,059
Service Cost—Benefits Earned During the Period		561			557
Interest Cost on Projected Benefit Obligation		1,104			1,060
Actuarial (Gain) Loss		3,462			194
Benefits Paid		(658	)		(604	)

Benefit Obligation at March 31,	$	24,735		$	20,266

Reconciliation of Fair Value of Plan Assets -
Fair Value of Plan Assets at April 1,	$	16,517		$	14,642
Actual Return on Plan Assets		445			1,886
Employer Contributions		1,006			593
Benefits Paid		(658	)		(604	)

Fair Value of Plans at March 31,		17,310			16,517

Funded Status -
Unfunded Status at March 31,	$	(7,425	)	$	(3,749	)

Amounts Recognized in the Balance Sheet Consist of -
Accrued Benefit Liability	$	(7,425	)	$	(3,749	)
Accumulated Other Comprehensive Losses:
Net Actuarial Loss		8,443			4,375
Prior Service Cost		43			75

Accumulated Other Comprehensive Losses		8,486		$	4,450
Tax impact		(2,970	)		(1,557	)

Accumulated Other Comprehensive Losses, net of tax	$	5,516		$	2,893

Schedule Of Accumulated Benefit Obligation In Excess Of Plan Assets


	March 31,
	2012		2011
	(dollars in thousands)
Projected Benefit Obligation	$	24,735	$	20,266
Accumulated Benefit Obligation	$	24,706	$	20,226
Fair Value of Plan Assets	$	17,310	$	16,517

Components Of Net Periodic Cost


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Service Cost - Benefits Earned During the Period	$	561		$	557		$	538
Interest Cost of Projected Benefit Obligation		1,104			1,060			1,024
Expected Return on Plan Assets		(1,293	)		(1,163	)		(826	)
Recognized Net Actuarial Loss		242			354			774
Amortization of Prior-Service Cost		33			80			130

Net Periodic Pension Cost	$	647		$	888		$	1,640

Schedule Of Expected Benefit Payments


Fiscal Years	Total
2013	$	900
2014	$	990
2015	$	1,091
2016	$	1,129
2017	$	1,207
2018-2022	$	7,535

Schedule Of Assumptions Used In Net Periodic Benefit Cost And Benefit Obligations


	March 31,
	2012			2011			2010
Net Periodic Benefit Costs -
Discount Rate		5.61	%		5.75	%		6.00	%
Expected Return on Plan Assets		8.00	%		8.00	%		8.00	%
Rate of Compensation Increase		3.50	%		3.50	%		3.50	%


	March 31,
	2012			2011
Benefit Obligations -
Discount Rate		4.56	%		5.61	%
Rate of Compensation Increase		3.50	%		3.50	%

Schedule Of Pension Plans Weighted-Average Asset Allocation And Range Of Target Allocation


	Range of Target			Percentage of Plan Assets at March 31,
	Allocation			2012			2011
Asset Category -
Equity Securities		40 – 60	%		60	%		60	%
Debt Securities		35 – 60	%		30	%		30	%
Other		0 – 5	%		10	%		10	%

Total					100	%		100	%

Schedule Of Fair Values Of Defined Benefit Plans


	March 31,
	2012		2011
	(dollars in thousands)
Equity Securities	$	9,808	$	9,785
Fixed Income Securities		4,914		4,711
Real Estate Funds		466		487
Commodity Linked Funds		710		807
Hedge Funds		303		—
Cash Equivalents		1,109		727

Total	$	17,310	$	16,517

Schedule Of Fair Values Of Defined Benefit Plans Determined Using Fair Value Hierarchy Of Inputs

The fair values by category of inputs as of March 31, 2012 were as follows:


Asset Categories	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(dollars in thousands)
Equity Securities ⁽¹⁾	$	—	$	9,808	$	—	$	9,808
Fixed Income Securities ⁽²⁾		—		4,914		—		4,914
Real Estate Funds ⁽²⁾		—		466		—		466
Commodity Linked Funds ⁽²⁾		—		710		—		710
Hedge Funds ⁽²⁾		—		303		—		303
Cash Equivalents		1,109		—		—		1,109

	$	1,109	$	16,201	$	—	$	17,310

The fair values by category of inputs as of March 31, 2011 were as follows:


Asset Categories	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(dollars in thousands)
Equity Securities ⁽¹⁾	$	—	$	9,785	$	—	$	9,785
Fixed Income Securities ⁽²⁾		—		4,711		—		4,711
Real Estate Funds ⁽²⁾		—		487		—		487
Commodity Linked Funds ⁽²⁾		—		807		—		807
Cash Equivalents		727		—		—		727

	$	727	$	15,790	$	—	$	16,517

⁽¹⁾	These funds are maintained by an investment manager and are primarily invested in indexes.

⁽²⁾	Primarily consists of investments in institutional funds.

Net Interest Expense (Tables)

12 Months Ended

Mar. 31, 2012

Net Interest Expense [Abstract]

Schedule Of Net Interest Expense


	For the Years Ended March 31,
	2012			2011			2010
	(dollars in thousands)
Interest Income	$	(6	)	$	(7	)	$	(41	)
Interest Expense		16,969			17,742			18,414
Interest Expense (Income) – IRS		(903	)		(1,468	)		2,741
Other Expenses		561			253			346

Interest Expense, net	$	16,621		$	16,520		$	21,460

Quarterly Results (Tables)

12 Months Ended

Mar. 31, 2012

Quarterly Results [Abstract]

Schedule Of Quarterly Results


	For the Years Ended March 31,
	2012		2011
	(dollars in thousands, except per share data)
First Quarter -
Revenues	$	119,807	$	130,794
Gross Profit		4,373		16,431
Earnings Before Income Taxes		1,039		14,667
Net Earnings		807		10,527
Diluted Earnings Per Share	$	0.02	$	0.24
Second Quarter -
Revenues	$	134,819	$	132,135
Gross Profit		8,717		13,549
Earnings Before Income Taxes		7,739		10,321
Net Earnings		6,025		9,630
Diluted Earnings Per Share	$	0.14	$	0.22
Third Quarter -
Revenues	$	123,596	$	103,870
Gross Profit		12,471		7,840
Earnings Before Income Taxes		489		6,620
Net Earnings		2,897		5,496
Diluted Earnings Per Share	$	0.07	$	0.12
Fourth Quarter -
Revenues	$	116,801	$	95,381
Gross Profit (Loss)		14,916		(2,243	)
Earnings Before Income Taxes		12,645		(14,846	)
Net Earnings		9,003		(10,804	)
Diluted Earnings Per Share	$	0.20	$	(0.25	)

Significant Accounting Policies (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2012	Mar. 31, 2012	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Significant Accounting Policies [Line Items]
Ownership percentage		50.00%	50.00%
Allowance for doubtful accounts		$ 5,000	$ 5,000	$ 4,600
Notes receivable, total		4,300	$ 4,300
Notes bear interest, on average, at prime rate plus			1.50%
Notes receivable, current		900	$ 900
Depreciable assets			48,900	48,200	$ 49,700
Carrying value of plant		3,400	3,400
Carrying value of equipment		4,000	4,000
Amortization expense of intangibles			$ 600	600	600
Stock repurchases approved by Board of Directors			31,610,605
Shares remain available for repurchase			717,300
Accumulated other comprehensive loss		5,500	$ 5,500
Net of income taxes for accumulated other comprehensive loss			3,000
Interest payments			18,800	18,100	21,400
Income taxes paid			8,000	$ 61,900	$ 6,800
Repurchased senior debt		88,100	88,100
Repurchased senior debt transaction costs			$ 2,100
Stock options outstanding (in shares)			2,773,279	1,904,637	2,738,219
Stock options, average exercise price per share			$ 42.17	$ 44.45	$ 39.15
Maintenance and repair expenses		2,000	$ 37,600	$ 34,500	$ 38,900
Award of arbitration proceedings			6,900
Attorneys' fees and arbitration costs			1,200
Planned expansion				8,900	2,500
Reversal of accrual	$ 3,000
Adjustment increase in Property Plant And Equipment						$ 3,000
Adjustment increase in deferred income taxes						1,050
Adjustment increase in retained earnings						$ 1,950
Notes Receivable [Member]
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts		$ 600	600
Revenues And Freight Costs [Member]
Significant Accounting Policies [Line Items]
Freight costs as cost of goods sold			$ 66,000	$ 62,000	$ 59,100

Significant Accounting Policies (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Inventories [Line Items]
Inventories	$ 123,606	$ 115,237
Raw Materials And Materials-In-Progress [Member]
Inventories [Line Items]
Inventories	46,336	36,497
Finished Cement [Member]
Inventories [Line Items]
Inventories	10,391	11,540
Gypsum Wallboard [Member]
Inventories [Line Items]
Inventories	6,215	6,347
Aggregates [Member]
Inventories [Line Items]
Inventories	14,155	12,419
Paperboard [Member]
Inventories [Line Items]
Inventories	2,443	5,274
Repair Parts And Supplies [Member]
Inventories [Line Items]
Inventories	40,352	40,280
Fuel And Coal [Member]
Inventories [Line Items]
Inventories	$ 3,714	$ 2,880

Significant Accounting Policies (Schedule Of Property, Plant And Equipment Estimated Lives) (Details)	12 Months Ended
	Mar. 31, 2012 yr
Plants [Member]
Property, Plant and Equipment [Line Items]
Estimated lives of assets - minimum (years)	20
Estimated lives of assets - maximum (years)	30
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated lives of assets - minimum (years)	20
Estimated lives of assets - maximum (years)	40
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated lives of assets - minimum (years)	3
Estimated lives of assets - maximum (years)	25

Significant Accounting Policies (Schedule Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Cost	$ 155,815	$ 155,815
Accumulated Amortization	(4,913)	(4,276)
Total intangible assets and goodwill, Net	$ 150,902	$ 151,539
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period (years)	15 years	15 years
Cost	$ 1,300	$ 1,300
Accumulated Amortization	(983)	(896)
Total intangible assets and goodwill, Net	$ 317	$ 404
Permits [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period (years)	40 years	40 years
Cost	$ 22,000	$ 22,000
Accumulated Amortization	(3,930)	(3,380)
Total intangible assets and goodwill, Net	18,070	18,620
Goodwill [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	132,515	132,515
Total intangible assets and goodwill, Net	$ 132,515	$ 132,515

Significant Accounting Policies (Summary Of Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Significant Accounting Policies [Abstract]
Net Earnings	$ 9,003	$ 2,897	$ 6,025	$ 807	$ (10,804)	$ 5,496	$ 9,630	$ 10,527	$ 18,732	$ 14,849	$ 28,950
Pension Plan Actuarial Gain (Loss), net of tax									(2,623)	625	2,522
Comprehensive Income									$ 16,109	$ 15,474	$ 31,472

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 8, 9, 10, 11, 12, 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A5
-Appendix A

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e557-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e540-108580

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6508144

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Significant Accounting Policies (Schedule Of Total Selling, General And Administrative Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Significant Accounting Policies [Abstract]
Operating Units Selling, G&A	$ 27,695	$ 26,812	$ 29,064
Corporate G&A	19,617	16,667	15,886
Total selling, general and administrative expenses	$ 47,312	$ 43,479	$ 44,950

Significant Accounting Policies (Schedule Of Earnings Per Share) (Details) - shares

12 Months Ended

Mar. 31, 2012

Mar. 31, 2011

Mar. 31, 2010

Significant Accounting Policies [Abstract]

Weighted-Average Shares of Common Stock Outstanding

44,224,924

43,891,817

43,684,942

Assumed Exercise of Outstanding Dilutive Options

800,748

1,186,064

1,026,667

Less Shares Repurchased from Proceeds of Assumed Exercised Options

^[1]

(652,046)

(934,328)

(745,235)

Restricted Stock Units

142,355

107,723

72,027

Weighted-Average Common Stock and Dilutive Securities Outstanding

44,515,981

44,251,276

44,038,401

[1]	(1) Includes unearned compensation related to outstanding stock options.

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1448-109256

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Property, Plant And Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1,140,744	$ 1,115,058
Accumulated Depreciation	(560,236)	(512,228)
Property, Plant and Equipment, Net	580,508	602,830
Mining and related assets	46,000	34,900
Land And Quarries [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	81,175	68,185
Plants [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	958,985	956,402
Buildings, Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	96,954	85,117
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3,630	$ 5,354

- Definition

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References + Details

Accrued Expenses (Schedule Of Accrued Expenses) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Accrued Expenses [Abstract]
Payroll and Incentive Compensation	$ 7,320	$ 7,712
Benefits	8,583	7,988
Interest	4,904	7,003
Insurance	5,068	6,639
Property Taxes	3,865	4,033
Other	3,879	5,812
Accrued expenses, total	$ 33,619	$ 39,187

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

- Definition

Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

Indebtedness (Narrative) (Details)		1 Months Ended	12 Months Ended
Indebtedness (Narrative) (Details)	Dec. 16, 2011 USD ($)	Aug. 31, 2011 USD ($)	Mar. 31, 2012 USD ($)	Dec. 31, 2012 USD ($)	Mar. 31, 2011 USD ($)	Dec. 16, 2010	Mar. 31, 2010	Oct. 02, 2007 USD ($)	Nov. 15, 2005 USD ($)
Debt Instrument [Line Items]
Letters of credit outstanding, amount			$ 9,000,000
Consolidated funded debt ratio			3.50 to 1.0 or less
Available additional borrowings				$ 100,000,000
Senior notes, permitted minimum aggregate principal amount prepayment without penalty			10.00%
Senior notes, principal amount eligible to be prepaid			100.00%
Discount on senior notes principal and interest, percentage			0.50%
Variable margin						0.50%
Senior notes, calculation of Make-Whole Amount, description			discounting the remaining scheduled payments of interest and principal of the Senior Notes being prepaid at a discount rate equal to the sum of <font class="_mt">50</font> basis points
Borrowings outstanding under Credit Facility			$ 70,000,000
New Credit Facility [Member]
Debt Instrument [Line Items]
Bank Credit Facility, maturity date			December 16, 2015
Bank Credit Facility, principal balance			$ 300,000,000
Bank Credit Facility, interest rate description			(i) LIBOR, plus an agreed margin (ranging from <font class="_mt">100</font> to <font class="_mt">225</font> basis points), which is to be established quarterly based upon the Company's ratio of consolidated EBITDA, which is defined as earnings before interest, taxes, depreciation and amortization, to its consolidated indebtedness, or (ii) an alternative base rate which is the higher of (a) the prime rate or (b) the federal funds rate plus <font class="_mt"><font class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">1</sup></font></font><font class="_mt" size="2">/</font><font class="_mt" size="1">2</font><font style="font-family: Times New Roman;" class="_mt" size="2">%, per annum plus an agreed margin (ranging from <font class="_mt">0</font> to <font class="_mt">125</font> basis points).</font>
Consolidated funded indebtedness ratio			3.5 or less
Interest coverage ratio			at least 2.5
Restricted payments maximum amount allowed for cash dividend			$ 50,000,000
Restricted payments maximum consolidated funded indebtedness ratio			3.0
Bank credit facility, borrowings available			$ 221,000,000
2005 Note Purchase Agreement [Member]
Debt Instrument [Line Items]
Senior notes, sale									$ 200,000,000
Senior notes, repurchased amount			$ 81,100,000
Senior notes, payment terms			<font style="font-family: Times New Roman;" class="_mt" size="2">payable semi-annually on the 15</font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">th</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> day of May and the 15</font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">th</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> day of November of each year until all principal is paid for the respective tranche.</font>
2007 Note Purchase Agreement [Member]
Debt Instrument [Line Items]
Senior notes, sale								$ 200,000,000
Senior notes, repurchased amount			$ 122,000,000
Senior notes, payment terms			payable semi-annually on the second day of April and the second day of October of each year until all principal is paid for the respective tranche.
Shelf Agreement [Member]
Debt Instrument [Line Items]
Senior unsecured notes		$ 75,000,000
Repayment term, years		two
Senior Notes [Member]
Debt Instrument [Line Items]
Discount rate basis points			50
Weighted-average interest rate			5.78%		5.75%
Interest rate of debt instrument			5.80%		5.75%
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Weighted-average interest rate			2.60%		1.70%		1.60%
Interest rate of debt instrument			2.50%		2.30%
Series 2007A Senior Notes [Member]
Debt Instrument [Line Items]
Repurchase of aggregate principal amount	$ 59,100,000
Repurchase amount	60,200,000
Repurchase of accrued interest	300,000
Series 2005A Senior Notes [Member]
Debt Instrument [Line Items]
Repurchase of aggregate principal amount	29,000,000
Repurchase amount	29,600,000
Repurchase of accrued interest	$ 400,000
Letter Of Credit [Member] \| New Credit Facility [Member]
Debt Instrument [Line Items]
Bank Credit Facility, principal balance			$ 50,000,000
Bank credit facility, one-time fee			0.125%
Letters of credit outstanding, amount					$ 9,000,000
Minimum [Member] \| Federal Funds Rate [Member] \| Bank Credit Facility [Member]
Debt Instrument [Line Items]
Variable margin	0.00%
Minimum [Member] \| LIBOR [Member] \| Bank Credit Facility [Member]
Debt Instrument [Line Items]
Variable margin	100.00%
Maximum [Member] \| Federal Funds Rate [Member] \| Bank Credit Facility [Member]
Debt Instrument [Line Items]
Variable margin	125.00%
Maximum [Member] \| LIBOR [Member] \| Bank Credit Facility [Member]
Debt Instrument [Line Items]
Variable margin	225.00%

Indebtedness (Schedule Of Components Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Debt Instrument [Line Items]
Total	$ 266,936	$ 287,000
Less: Current Portion of Long-term Debt	(4,677)
Long-term Debt	262,259	287,000
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Total	70,000	2,000
Senior Notes [Member]
Debt Instrument [Line Items]
Total	$ 196,936	$ 285,000

Indebtedness (Schedule Of Maturities Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Indebtedness [Abstract]
2013	$ 4,677
2014
2015	9,500
2016	127,045
2017	8,000
Thereafter	117,714
Total	$ 266,936	$ 287,000

Indebtedness (Schedule Of Repurchases Of Outstanding Tranches) (Details) $ in Millions	12 Months Ended
	Mar. 31, 2012 USD ($)
2005 Note Purchase Agreement [Member] \| Series 2005A Tranche A [Member]
Debt Instrument [Line Items]
Principal	$ 4.7
Maturity Date	Nov. 15, 2012
Interest Rate	5.25%
2005 Note Purchase Agreement [Member] \| Series 2005A Tranche B [Member]
Debt Instrument [Line Items]
Principal	$ 57.0
Maturity Date	Nov. 15, 2015
Interest Rate	5.38%
2005 Note Purchase Agreement [Member] \| Series 2005A Tranche C [Member]
Debt Instrument [Line Items]
Principal	$ 57.2
Maturity Date	Nov. 15, 2017
Interest Rate	5.48%
2007 Note Purchase Agreement [Member] \| Series 2007A Tranche A [Member]
Debt Instrument [Line Items]
Principal	$ 9.5
Maturity Date	Oct. 02, 2014
Interest Rate	6.08%
2007 Note Purchase Agreement [Member] \| Series 2007A Tranche B [Member]
Debt Instrument [Line Items]
Principal	$ 8.0
Maturity Date	Oct. 02, 2016
Interest Rate	6.27%
2007 Note Purchase Agreement [Member] \| Series 2007A Tranche C [Member]
Debt Instrument [Line Items]
Principal	$ 24.0
Maturity Date	Oct. 02, 2017
Interest Rate	6.36%
2007 Note Purchase Agreement [Member] \| Series 2007A Tranche D [Member]
Debt Instrument [Line Items]
Principal	$ 36.5
Maturity Date	Oct. 02, 2019
Interest Rate	6.48%

Fair Value Of Financial Instruments (Schedule Of Fair Value Of Senior Notes) (Details) $ in Thousands	Mar. 31, 2012 USD ($)
Series 2005A Tranche A [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	$ 4,724
Series 2005A Tranche B [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	58,671
Series 2005A Tranche C [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	58,267
Series 2007A Tranche A [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	9,922
Series 2007A Tranche B [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	8,511
Series 2007A Tranche C [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	25,440
Series 2007A Tranche D [Member]
Fair Value Of Financial Instruments [Line Items]
Fair value of Senior Notes	$ 38,705

Business Segments (Narrative) (Details) $ in Millions	12 Months Ended
Business Segments (Narrative) (Details) $ in Millions	Mar. 31, 2012 USD ($)
Business Segments [Abstract]
Business segments	4
Cement plant locations	4
Cement distribution terminals	11
Gypsum wallboard plants	5
Gypsum wallboard distribution center	1
Recycled paperboard mill	1
Readymix plant	9
Aggregates processing plant	2
Proportionate consolidation of share of the Joint Venture's revenues and operating earnings	50.00%
Amount provided for joint venture capital needs	$ 12

Business Segments (Schedule Of Financial Information Related To Operations By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Segment Reporting Information [Line Items]
Revenues, Sub-total									$ 625,920	$ 579,355	$ 574,932
Less: Intersegment Revenues									(44,757)	(42,263)	(41,589)
Less: Joint Venture Revenues									(86,140)	(74,912)	(65,438)
Net Revenues	$ 116,801	$ 123,596	$ 134,819	$ 119,807	$ 95,381	$ 103,870	$ 132,135	$ 130,794	495,023	462,180	467,905
Cement [Member]
Segment Reporting Information [Line Items]
Revenues, Sub-total									243,978	225,784	228,475
Less: Intersegment Revenues									(3,605)	(4,086)	(4,449)
Gypsum Wallboard [Member]
Segment Reporting Information [Line Items]
Revenues, Sub-total									217,633	204,560	210,671
Paperboard [Member]
Segment Reporting Information [Line Items]
Revenues, Sub-total									118,794	104,775	90,164
Less: Intersegment Revenues									(40,485)	(37,622)	(36,369)
Concrete And Aggregates [Member]
Segment Reporting Information [Line Items]
Revenues, Sub-total									45,515	44,236	45,622
Less: Intersegment Revenues									$ (667)	$ (555)	$ (771)

Business Segments (Schedule Of Financial Information Related To Intersegment Revenue) (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2012 USD ($)	Mar. 31, 2011 USD ($)	Mar. 31, 2010 USD ($)
Segment Reporting Information [Line Items]
Intersegment Revenues	$ 44,757	$ 42,263	$ 41,589
Cement Sales Volume (M tons)	2,723	2,541	2,467
Wholly-Owned Operations [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume (M tons)	1,857	1,718	1,754
Joint Venture [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume (M tons)	866	823	713
Cement [Member]
Segment Reporting Information [Line Items]
Intersegment Revenues	$ 3,605	$ 4,086	$ 4,449
Paperboard [Member]
Segment Reporting Information [Line Items]
Intersegment Revenues	40,485	37,622	36,369
Concrete And Aggregates [Member]
Segment Reporting Information [Line Items]
Intersegment Revenues	$ 667	$ 555	$ 771

Business Segments (Schedule Of Financial Information Related To Operating Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Segment Reporting Information [Line Items]
Operating Earnings									$ 69,361	$ 60,650	$ 79,191
Other, net									356	840	3,161
Corporate General and Administrative									(19,617)	(16,667)	(15,886)
Other Corporate Charges									(9,117)	(10,701)	(2,548)
Earnings Before Interest and Income Taxes									40,627	33,282	60,757
Loss on Debt Retirement									(2,094)
Interest Expense, net									(16,621)	(16,520)	(21,460)
Earnings Before Income Taxes	$ 12,645	$ 489	$ 7,739	$ 1,039	$ (14,846)	$ 6,620	$ 10,321	$ 14,667	21,912	16,762	39,297
Identifiable Assets, Total	985,145				985,810				985,145	985,810	1,013,776
Capital Expenditure, Other, net									110	425	95
Capital Expenditures, Total									26,099	17,224	13,779
Depreciation, Depletion and Amortization									866	641	705
Depreciation, Depletion and Amortization, Total									50,124	49,212	50,781
Cement [Member]
Segment Reporting Information [Line Items]
Operating Earnings									46,850	45,688	58,007
Identifiable Assets, Total	313,559				304,693				313,559	304,693	308,606
Capital Expenditure, Other, net									7,753	9,395	12,744
Depreciation, Depletion and Amortization									15,373	14,468	14,683
Cement [Member] \| Wholly-Owned Operations [Member]
Segment Reporting Information [Line Items]
Operating Earnings									18,322	21,455	33,850
Cement [Member] \| Joint Venture [Member]
Segment Reporting Information [Line Items]
Operating Earnings									28,528	24,233	24,157
Gypsum Wallboard [Member]
Segment Reporting Information [Line Items]
Operating Earnings									6,264	1,242	1,383
Identifiable Assets, Total	434,967				446,174				434,967	446,174	466,426
Capital Expenditure, Other, net									3,357	2,190	184
Depreciation, Depletion and Amortization									20,903	21,463	22,328
Paperboard [Member]
Segment Reporting Information [Line Items]
Operating Earnings									16,988	12,086	14,805
Identifiable Assets, Total	137,483				144,434				137,483	144,434	149,602
Capital Expenditure, Other, net									919	1,447	236
Depreciation, Depletion and Amortization									8,595	8,800	9,090
Concrete And Aggregates [Member]
Segment Reporting Information [Line Items]
Operating Earnings									(1,097)	794	1,835
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Identifiable Assets, Total	38,096				38,712				38,096	38,712	37,355
Aggregates [Member]
Segment Reporting Information [Line Items]
Identifiable Assets, Total	49,009				39,907				49,009	39,907	39,975
Capital Expenditure, Other, net									13,639	3,416	445
Depreciation, Depletion and Amortization									3,365	3,004	2,921
Concrete [Member]
Segment Reporting Information [Line Items]
Identifiable Assets, Total	$ 12,031				$ 11,890				12,031	11,890	11,812
Capital Expenditure, Other, net									321	351	75
Depreciation, Depletion and Amortization									$ 1,022	$ 836	$ 1,054

Business Segments (Schedule Of Goodwill) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Segment Reporting Information [Line Items]
Goodwill	$ 132,515	$ 132,515
Cement [Member]
Segment Reporting Information [Line Items]
Goodwill	8,359	8,359
Gypsum Wallboard [Member]
Segment Reporting Information [Line Items]
Goodwill	116,618	116,618
Paperboard [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 7,538	$ 7,538

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2011	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Income Taxes [Line Items]
Tax provision and benefit	$ 2,500		$ 3,180	$ 1,913	$ 10,347
Payment received from IRS				9,100
Uncertain tax position			25,890	$ 28,450	$ 49,107	$ 70,382
Reduction of other long-term liabilities			29,300
Income tax refund			106,600
Past taxes due, for years 2007-2011			9,000
Interest and penalties accrued			3,900
Accrued interest on the uncertain tax position			$ 3,400
Scenario, Forecast [Member]
Income Taxes [Line Items]
Changes in unrecognized tax benefits		$ 12,900

Income Taxes (Schedule Of Components Of Provision For Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Taxes [Abstract]
Current Provision (Benefit) - Federal		$ 812	$ (6,450)	$ 8,872
Current Provision (Benefit) - State		180	(134)	274
Current Provision (Benefit) - Total		992	(6,584)	9,146
Deferred Provision (Benefit) - Federal		1,984	7,919	2,493
Deferred Provision (Benefit) - State		204	578	(1,292)
Deferred Provision (Benefit) - Total		2,188	8,497	1,201
Provision for Income Taxes	$ 2,500	$ 3,180	$ 1,913	$ 10,347

- Definition

The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Paragraph Question 1-7

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Current Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6509736

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-Name Statement of Financial Accounting Standard (FAS)
-Number 109
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+ Details

- Definition

The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

+ Details

- Definition

The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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-Article 4

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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

+ Details

- Definition

The component of total income tax expense for the period comprised of the increase (decrease) during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-Name Accounting Standards Codification
-Glossary Deferred Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6510177

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-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

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+ Details

- Definition

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28
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-Name Accounting Standards Codification
-Glossary Deferred Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6510177

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-Name Statement of Financial Accounting Standard (FAS)
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

+ Details

- Definition

The component of total income tax expense for the period comprised of the increase (decrease) in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes (Schedule Of Effective Tax Rates Vary From Federal Statutory Rates) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Taxes [Abstract]
Earnings Before Income Taxes	$ 12,645	$ 489	$ 7,739	$ 1,039	$ (14,846)	$ 6,620	$ 10,321	$ 14,667	$ 21,912	$ 16,762	$ 39,297
Income Taxes at Statutory Rate									7,669	5,866	13,754
Increase (Decreases) in Tax Resulting from - State Income Taxes, net									249	289	(662)
Increase (Decreases) in Tax Resulting from - Statutory Depletion in Excess of Cost									(2,619)	(2,492)	(3,180)
Increase (Decreases) in Tax Resulting from - Domestic Production Activities Deduction									36	195	(495)
Increase (Decreases) in Tax Resulting from - Meals and Entertainment Disallowance									284	283	371
Increase (Decreases) in Tax Resulting from - Penalties on Uncertain Tax Positions									190	400	491
Increase (Decreases) in Tax Resulting from - Tax Benefits-ASC 740 Accruals and State Amnesty Programs									(2,558)	(2,840)
Increase (Decreases) in Tax Resulting from - Other									(71)	212	68
Provision for Income Taxes		$ 2,500							$ 3,180	$ 1,913	$ 10,347
Effective Tax Rate									15.00%	11.00%	26.00%

Income Taxes (Schedule Of Deferred Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	$ 2,188	$ 8,497	$ 1,201
Excess Tax Depreciation And Amortization [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	4,617	(15)	187
Bad Debts [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	(119)	(324)	27
Uniform Capitalization [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	(1,004)	681	139
Accrual Changes [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	1,107	4,135	1,493
Uncertain Tax Position Accruals [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	(2,264)	5,136
Other [Member]
Deferred Income (Benefit) Taxes [Line Items]
Deferred income tax provision	$ (149)	$ (1,116)	$ (645)

- Definition

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.

+ References

+ Details

Income Taxes (Schedule Of Components Of Deferred Income Taxes) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Income Taxes [Abstract]
Items Giving Rise to Deferred Tax Liabilities - Excess Tax Depreciation and Amortization	$ (153,220)	$ (149,652)
Items Giving Rise to Deferred Tax Assets - Accrual Changes	13,138	15,295
Items Giving Rise to Deferred Tax Assets - Bad Debts	1,825	1,705
Items Giving Rise to Deferred Tax Assets - Uniform Capitalization	990	(14)
Items Giving Rise to Deferred Tax Assets - Other	3,588	2,186
Items Giving Rise to Deferred Tax Assets - Total Deferred Tax Assets	$ 19,541	$ 19,172

- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from other provisions, reserves, allowances, and liabilities, which are not otherwise reflected in deferred taxes in the taxonomy, which can only be deducted for tax purposes when relevant losses are realized or actual obligations are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

+ References + Details

- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from currently nondeductible expenses in accrued liabilities, which can only be deducted for tax purposes when such items are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

+ References + Details

- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated losses reflected in the allowance for doubtful accounts, which can only be deducted for tax purposes when actual bad debts are known, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

+ References + Details

- Definition

The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets and the basis of capital assets computed in accordance with generally accepted accounting principles. The difference in basis, attributable to different capitalization of costs, depreciation, or amortization methodologies, will increase future taxable income when such basis difference is realized. Capital assets include but are not limited to assets such as land, real estate, leasehold improvements, machinery and equipment and furniture and fixtures.

+ References + Details

Income Taxes (Schedule Of Income Taxes Classified In Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011
Income Taxes [Abstract]
Accrued Liabilities		$ (1,341)
Prepaid and Other Assets	$ 186
Deferred Income Taxes	$ (133,865)	$ (129,139)

- Definition

For entities that net deferred tax assets and tax liabilities, represents the net amount of deferred tax assets (after reduction for valuation allowance) and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities that are classified as current in the financial statements, or that are expected to reverse in the next twelve months (or normal operating cycle, if longer). A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference.

+ References + Details

- Definition

For entities that net deferred tax assets and tax liabilities, represents the net amount of deferred tax assets (after reduction for valuation allowance) and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities that are classified as noncurrent in the financial statements, or that are expected to reverse after the next twelve months (or beyond the normal operating cycle, if longer). A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference.

+ References + Details

Income Taxes (Reconciliation Of The Consolidated Liability For Gross Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Taxes [Abstract]
Balance at Beginning of Year	$ 28,450	$ 49,107	$ 70,382
Increase related to prior tax positions	534	3,734	1,424
Decrease related to prior tax positions	(2,797)	(1,597)	(933)
Payments	(297)	(22,794)	(21,766)
Balance at End of Year	$ 25,890	$ 28,450	$ 49,107

Income Taxes (Summary Of Amounts Of Interest And Penalties Recognized In Relation To Uncertain Tax Position) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Taxes [Abstract]
Accrued interest recognized	$ (903)	$ (1,468)	$ 2,741
Accrued penalties recognized	$ 190	$ 400	$ 491

Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010	Jan. 19, 2012	Jul. 31, 2010
Commitments And Contingencies [Line Items]
Contingent liabilities under outstanding letters of credit		$ 9.0
Contingently liable for performance, current		10.4
Notice of Deficiency received for taxes and penalties related to IRS audit	$ 71.5
Notice of Deficiency received for taxes and penalties including interest	98.7	97.9
Taxes and penalties including interest deposited with IRS	$ 75.0
Taxes and penalties amount refunded from IRS		$ 0.8
Remaining taxes and penalties including interest deposited with IRS						$ 23.7
Total taxes and penalties including interest deposited with IRS						$ 98.7
Sale percentage of gypsum-grade recycled paperboard		90.00%
Percentage of expected natural gas usage		25.00%
Operating leases Rental expense		$ 1.7	$ 2.0	$ 2.1
State taxes penalties and interest		$ 0.3	$ 8.4
Legal award to mining companies					$ 6.9
Legal award to other parties					$ 1.2
Minimum [Member]
Commitments And Contingencies [Line Items]
Sale percentage of gypsum-grade recycled paperboard		15.00%
Maximum [Member]
Commitments And Contingencies [Line Items]
Sale percentage of gypsum-grade recycled paperboard		20.00%

Commitments And Contingencies (Schedule Of Insurance Accruals And Payments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Commitments And Contingencies [Abstract]
Accrual Balances at Beginning of Period	$ 6,639	$ 6,384
Insurance Expense Accrued	2,083	2,947
Payments	(3,654)	(2,692)
Accrual Balance at End of Period	$ 5,068	$ 6,639

Commitments And Contingencies (Schedule Of Minimum Annual Rental Commitments) (Details) $ in Thousands	Mar. 31, 2012 USD ($)
Commitments And Contingencies [Abstract]
2013	$ 812
2014	859
2015	888
2016	888
2017	1,176
Thereafter	$ 10,782

Stock Option Plans (Narrative) (Details) $ in Millions		1 Months Ended		3 Months Ended			12 Months Ended
Stock Option Plans (Narrative) (Details) $ in Millions	Jan. 08, 2004	Mar. 31, 2011 shares	May 31, 2010 shares	Mar. 31, 2012 USD ($) yr shares	Jun. 30, 2011 shares	Mar. 31, 2011 shares	Mar. 31, 2012 USD ($) yr shares	Mar. 31, 2011 USD ($) yr shares	Mar. 31, 2010 USD ($) shares	Aug. 31, 2009 shares
Share-Based Employee Compensation [Line Items]
Existing stock option plans	2
Number of shares available future grant										3,000,000
Number of options granted by the Board of Directors							474,124	269,502	138,651
Earnings of performance vesting stock options						118,000
Unrecognized compensation cost \| $				$ 13.7			$ 13.7
Unvested RSUs (in shares)							80,000
Weighted-average period of recognition of unrecognized compensation cost, years \| yr							4.9
Aggregate intrinsic value of exercisable options \| $				$ 9.1			$ 9.1
Number of options forfeited							172,777	3,954	124,400
Total intrinsic value of options exercised \| $							$ 5.6
Stock option expense \| $							1.4	$ 0.8	$ 2.4
Stock option grants expense \| $							$ 1.3	$ 1.1
Share-based compensation award expiration term in years							7	10
Shares available for future stock option, restricted stock and restricted stock unit grants				1,903,105			1,903,105
Maximum number of shares available for grant							179,858
Stock Options [Member]
Share-Based Employee Compensation [Line Items]
Unrecognized compensation cost \| $				$ 3.3			$ 3.3
Weighted-average period of recognition of unrecognized compensation cost, years \| yr							1.9
Share-based compensation award expiration term in years \| yr								10
Restricted Stock [Member]
Share-Based Employee Compensation [Line Items]
Number of shares available future grant				1,883,424			1,883,424
Percentage of average return on invested capital							12.00%
Restricted stock option expense \| $							$ 2.6	$ 1.0	0.2
Number of shares granted by the Board of Directors			274,166		412,164
Average return on equity								17.25%
Remaining restrictions of unearned compensation cost							660,000
Stock Appreciation Rights (SARs) [Member]
Share-Based Employee Compensation [Line Items]
Number of shares available future grant				1,883,424			1,883,424
Restricted Stock Units (RSUs) [Member]
Share-Based Employee Compensation [Line Items]
Number of shares available future grant			207,500	1,883,424			1,883,424
Unrecognized compensation cost \| $				$ 1.7			$ 1.7
Weighted-average period of recognition of unrecognized compensation cost, years \| yr								1.3
Number of options forfeited		57,000
Stock option expense \| $							$ 1.5	$ 1.6	$ 0.4
Board Of Directors [Member]
Share-Based Employee Compensation [Line Items]
Number of options granted by the Board of Directors			163,000		352,829
Requirement A [Member] \| Restricted Stock [Member]
Share-Based Employee Compensation [Line Items]
Shareholder's age, in years \| yr				65
Years of service \| yr				10			10
Requirement B [Member] \| Restricted Stock [Member]
Share-Based Employee Compensation [Line Items]
Years of service \| yr				25			25
Expiration of grant from date of grant, years \| yr				5			5
Requirement C [Member] \| Restricted Stock [Member]
Share-Based Employee Compensation [Line Items]
Expiration of grant from date of grant, years \| yr				15			15

Stock Option Plans (Schedule Of Weighted-Average Assumptions Used To Value The Option Awards) (Details) - yr	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Stock Option Plans [Abstract]
Dividend Yield	2.00%	2.00%
Expected Volatility	41.90%	42.30%
Risk Free Interest Rate	2.50%	2.80%
Expected Life (Years)	8.0	7.0

Stock Option Plans (Schedule Of Stock Option Activity) (Details) - $ / shares	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Stock Option Plans [Abstract]
Number of Shares, Outstanding Options at Beginning of Year	3,323,786	3,446,452	3,568,431
Number of Shares, Granted	474,124	269,502	138,651
Number of Shares, Exercised	(383,811)	(388,214)	(136,230)
Number of Shares, Cancelled	(172,777)	(3,954)	(124,400)
Number of Shares, Outstanding Options at End of Year	3,241,322	3,323,786	3,446,452
Number of Shares, Options Exercisable at End of Year	1,567,734	1,735,911	1,976,852
Weighted Average Exercise Price, Weighted Average Fair Value of Options Granted during the Year	$ 10.29	$ 10.88	$ 9.38
Weighted Average Exercise Price, Outstanding Options at Beginning of Year	35.60	33.97	33.32
Weighted Average Exercise Price, Granted	26.41	28.45	27.72
Weighted Average Exercise Price, Exercised	18.57	15.94	27.09
Weighted Average Exercise Price, Cancelled	38.69	58.93	32.83
Weighted Average Exercise Price, Outstanding Options at End of Year	$ 36.11	$ 35.60	$ 33.97

Stock Option Plans (Schedule Of Stock Options Outstanding) (Details)	12 Months Ended
	Mar. 31, 2012 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares Outstanding \| shares	3,241,322
Options Outstanding, Weighted Average Exercise Price	$ 36.11
Options Exercisable, Number of Shares Outstanding \| shares	1,567,734
Options Exercisable, Weighted Average Exercise Price	$ 28.93
$ 11.56 - $ 13.43 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	11.56
Range of Exercise Prices, Upper Range	$ 13.43
Options Outstanding, Number of Shares Outstanding \| shares	88,536
Options Outstanding, Weighted Average Remaining Contractual Life (years)	1.12
Options Outstanding, Weighted Average Exercise Price	$ 11.74
Options Exercisable, Number of Shares Outstanding \| shares	88,536
Options Exercisable, Weighted Average Exercise Price	$ 11.74
$ 23.30 - $ 29.08 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	23.30
Range of Exercise Prices, Upper Range	$ 29.08
Options Outstanding, Number of Shares Outstanding \| shares	1,517,477
Options Outstanding, Weighted Average Remaining Contractual Life (years)	5.67
Options Outstanding, Weighted Average Exercise Price	$ 26.69
Options Exercisable, Number of Shares Outstanding \| shares	1,134,289
Options Exercisable, Weighted Average Exercise Price	$ 26.29
$ 34.09 -$ 40.78 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	34.09
Range of Exercise Prices, Upper Range	$ 40.78
Options Outstanding, Number of Shares Outstanding \| shares	308,170
Options Outstanding, Weighted Average Remaining Contractual Life (years)	1.67
Options Outstanding, Weighted Average Exercise Price	$ 37.91
Options Exercisable, Number of Shares Outstanding \| shares	277,770
Options Exercisable, Weighted Average Exercise Price	$ 38.07
$ 47.53 - $ 62.83 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	47.53
Range of Exercise Prices, Upper Range	$ 62.83
Options Outstanding, Number of Shares Outstanding \| shares	1,327,139
Options Outstanding, Weighted Average Remaining Contractual Life (years)	2.28
Options Outstanding, Weighted Average Exercise Price	$ 48.09
Options Exercisable, Number of Shares Outstanding \| shares	67,139
Options Exercisable, Weighted Average Exercise Price	$ 58.42

Pension And Profit Sharing Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Maximum percentage of employees contribution after-tax basis	10.00%
Costs relating to employer discretionary contributions	$ 2.5	$ 2.5	$ 1.7
Matching contributions to 401 (k) plan	0.1	$ 0.1	$ 0.1
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Current actuarial estimates contributions	0.5
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Current actuarial estimates contributions	$ 1.0

Pension And Profit Sharing Plans (Schedule Of Reconciliation Of Obligations And Fair Values Of Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Pension And Profit Sharing Plans [Abstract]
Benefit Obligation at April 1,	$ 20,266	$ 19,059
Service Cost - Benefits Earned During the Period	561	557	$ 538
Interest Cost on Projected Benefit Obligation	1,104	1,060	1,024
Actuarial (Gain) Loss	3,462	194
Benefits Paid	(658)	(604)
Benefit Obligation at March 31,	24,735	20,266	19,059
Fair Value of Plan Assets at April 1,	16,517	14,642
Actual Return on Plan Assets	445	1,886
Employer Contributions	1,006	593
Benefits Paid	(658)	(604)
Fair Value of Plans at March 31,	17,310	16,517	$ 14,642
Unfunded Status at March 31,	(7,425)	(3,749)
Accrued Benefit Liability	(7,425)	(3,749)
Accumulated Other Comprehensive Losses - Net Actuarial Loss	8,443	4,375
Accumulated Other Comprehensive Losses - Prior Service Cost	43	75
Accumulated Other Comprehensive Losses	8,486	4,450
Tax impact	(2,970)	(1,557)
Accumulated Other Comprehensive Losses, net of tax	$ 5,516	$ 2,893

Pension And Profit Sharing Plans (Schedule Of Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Pension And Profit Sharing Plans [Abstract]
Projected Benefit Obligation	$ 24,735	$ 20,266	$ 19,059
Accumulated Benefit Obligation	24,706	20,226
Fair Value of Plan Assets	$ 17,310	$ 16,517	$ 14,642

- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

+ References

+ Details

- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References + Details

Pension And Profit Sharing Plans (Components Of Net Periodic Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Pension And Profit Sharing Plans [Abstract]
Service Cost - Benefits Earned During the Period	$ 561	$ 557	$ 538
Interest Cost of Projected Benefit Obligation	1,104	1,060	1,024
Expected Return on Plan Assets	(1,293)	(1,163)	(826)
Recognized Net Actuarial Loss	242	354	774
Amortization of Prior-Service Cost	33	80	130
Net Periodic Pension Cost	$ 647	$ 888	$ 1,640

- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

+ Details

- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References + Details

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6525008

+ Details

Pension And Profit Sharing Plans (Schedule Of Expected Benefit Payments) (Details) $ in Thousands	Mar. 31, 2012 USD ($)
Pension And Profit Sharing Plans [Abstract]
2013	$ 900
2014	990
2015	1,091
2016	1,129
2017	1,207
2018-2022	$ 7,535

Pension And Profit Sharing Plans (Schedule Of Assumptions Used In Net Periodic Benefit Cost And Benefit Obligations) (Details)	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Pension And Profit Sharing Plans [Abstract]
Net Periodic Benefit Costs - Discount Rate	5.61%	5.75%	6.00%
Net Periodic Benefit Costs - Expected Return on Plan Assets	8.00%	8.00%	8.00%
Net Periodic Benefit Costs - Rate of Compensation Increase	3.50%	3.50%	3.50%
Benefit Obligations - Discount Rate	4.56%	5.61%
Benefit Obligations - Rate of Compensation Increase	3.50%	3.50%

Pension And Profit Sharing Plans (Schedule Of Pension Plans Weighted-Average Asset Allocation And Range Of Target Allocation) (Details)	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Pension And Profit Sharing Plans [Abstract]
Range of Target Allocation - Equity Securities, Minimum	40.00%
Range of Target Allocation - Equity Securities, Maximum	60.00%
Range of Target Allocation - Debt Securities, Minimum	35.00%
Range of Target Allocation - Debt Securities, Maximum	60.00%
Range of Target Allocation - Other, Minimum	0.00%
Range of Target Allocation - Other, Maximum	5.00%
Percentage of Plan Assets at March 31, Equity Securities	60.00%	60.00%
Percentage of Plan Assets at March 31, Debt Securities	30.00%	30.00%
Percentage of Plan Assets at March 31, Other	10.00%	10.00%
Percentage of Plan Assets at March 31, Total	100.00%	100.00%

Pension And Profit Sharing Plans (Schedule Of Fair Values Of Defined Benefit Plans) (Details) - USD ($)
$ in Thousands

Mar. 31, 2012

Mar. 31, 2011

Mar. 31, 2010

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

$ 17,310

$ 16,517

$ 14,642

Equity Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[1]

9,808

9,785

Fixed Income Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

4,914

4,711

Real Estate Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

466

487

Commodity Linked Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

710

807

Hedge Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

303

Cash Equivalents [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

$ 1,109

$ 727

[1]	(1) These funds are maintained by an investment manager and are primarily invested in indexes.
[2]	(2) Primarily consists of investments in institutional funds.

- Definition

+ References + Details

Pension And Profit Sharing Plans (Schedule Of Fair Values Of Defined Benefit Plans Determined Using Fair Value Hierarchy Of Inputs) (Details) - USD ($)
$ in Thousands

Mar. 31, 2012

Mar. 31, 2011

Mar. 31, 2010

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

$ 17,310

$ 16,517

$ 14,642

Equity Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[1]

9,808

9,785

Fixed Income Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

4,914

4,711

Real Estate Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

466

487

Commodity Linked Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

710

807

Hedge Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

303

Cash Equivalents [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

1,109

727

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

1,109

727

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Equity Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[1]

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Fixed Income Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Real Estate Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Commodity Linked Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Hedge Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Cash Equivalents [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

1,109

727

Significant Other Observable Inputs (Level 2) [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

16,201

15,790

Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[1]

9,808

9,785

Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

4,914

4,711

Significant Other Observable Inputs (Level 2) [Member] | Real Estate Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

466

487

Significant Other Observable Inputs (Level 2) [Member] | Commodity Linked Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

710

$ 807

Significant Other Observable Inputs (Level 2) [Member] | Hedge Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

303

Significant Unobservable Inputs (Level 3) [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[1]

Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Significant Unobservable Inputs (Level 3) [Member] | Real Estate Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Significant Unobservable Inputs (Level 3) [Member] | Commodity Linked Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Significant Unobservable Inputs (Level 3) [Member] | Hedge Funds [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

^[2]

Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair values of defined benefit plans

[1]	(1) These funds are maintained by an investment manager and are primarily invested in indexes.
[2]	(2) Primarily consists of investments in institutional funds.

Net Interest Expense (Schedule Of Net Interest Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Net Interest Expense [Abstract]
Interest Income	$ (6)	$ (7)	$ (41)
Interest Expense	16,969	17,742	18,414
Interest Expense (Income) - IRS	(903)	(1,468)	2,741
Other Expenses	561	253	346
Interest Expense, net	$ 16,621	16,520	$ 21,460
Accrued interest expense		$ 2,800

Stockholders' Equity (Details) - $ / shares	12 Months Ended
Stockholders' Equity (Details) - $ / shares	Mar. 31, 2012	Mar. 31, 2011	Jan. 08, 2004
Stockholders' Equity [Line Items]
Common stock, authorized	100,000,000	100,000,000
Preferred stock, authorized	5,000,000	5,000,000
Stock dividends shares	1
Common stock voting percentage	15.00%
Rights of holders to become exercisable	<font style="font-family: Times New Roman;" class="_mt" size="2">1/1,000</font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">th</sup></font>
Common stock discount percentage	50.00%
Common stock rights redeemed	$ 0.001
Rights expiration period	January 7, 2014
Preferred stock exercise price	$ 140.00
Minimum [Member]
Stockholders' Equity [Line Items]
Common stock, authorized			50,000,000
Preferred stock, authorized			2,000,000
Maximum [Member]
Stockholders' Equity [Line Items]
Common stock, authorized			100,000,000
Preferred stock, authorized			5,000,000
Rights Agreement [Member]
Stockholders' Equity [Line Items]
Preferred stock shares designated	40,000

Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Quarterly Results [Abstract]
Revenues	$ 116,801	$ 123,596	$ 134,819	$ 119,807	$ 95,381	$ 103,870	$ 132,135	$ 130,794	$ 495,023	$ 462,180	$ 467,905
Gross Profit (Loss)	14,916	12,471	8,717	4,373	(2,243)	7,840	13,549	16,431	40,477	35,577	51,873
Earnings Before Income Taxes	12,645	489	7,739	1,039	(14,846)	6,620	10,321	14,667	21,912	16,762	39,297
Net Earnings	$ 9,003	$ 2,897	$ 6,025	$ 807	$ (10,804)	$ 5,496	$ 9,630	$ 10,527	$ 18,732	$ 14,849	$ 28,950
Diluted Earnings Per Share	$ 0.20	$ 0.07	$ 0.14	$ 0.02	$ (0.25)	$ 0.12	$ 0.22	$ 0.24	$ 0.42	$ 0.34	$ 0.66
Cost of Property Repairs and Additional Maintenance	$ 2,000								$ 37,600	$ 34,500	$ 38,900
Other non-operating expense		$ 9,100			$ (10,700)				$ 9,117	10,701	$ 2,548
Wrote-off value of other non-operating expenses										$ 8,900
Increase in operating costs due to an expanded plant shut-down	$ 5,000

Label	Element	Value
Scenario Adjustment [Member]
Adjustment For Reversal Of Accrual	exp_AdjustmentForReversalOfAccrual	$ 1,950,000
Retained Earnings [Member] \| Scenario Adjustment [Member]
Adjustment For Reversal Of Accrual	exp_AdjustmentForReversalOfAccrual	$ 1,950,000