v3.19.2
Cover
Aug. 06, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 06, 2019
Entity File Number 1-12984
Entity Registrant Name Eagle Materials Inc.
Entity Central Index Key 0000918646
Entity Tax Identification Number 75-2520779
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 5960 Berkshire Ln.
Entity Address, Address Line Two Suite 900
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75225
City Area Code 214
Local Phone Number 432-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol EXP
Security Exchange Name NYSE
Entity Emerging Growth Company false