v3.25.3
Document and Entity Information
Oct. 30, 2025
Document And Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Oct. 30, 2025
Entity Registrant Name EAGLE MATERIALS INC
Entity Incorporation State Country Code DE
Entity File Number 1-12984
Entity Tax Identification Number 75-2520779
Entity Address Address Line 1 5960 Berkshire Ln.
Entity Address Address Line 2 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
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0000918646
New York Stock Exchange [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock, $0.01 par value
Trading Symbol EXP
Security Exchange Name NYSE
NYSE Texas, Inc. [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock, $0.01 par value
Trading Symbol EXP
Security Exchange Name CHX