v3.25.2
Document and Entity Information
Oct. 01, 2025
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001624794
Document Type 8-K
Document Period End Date Oct. 01, 2025
Entity Registrant Name CSW INDUSTRIALS, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-37454
Entity Tax Identification Number 47-2266942
Entity Address, Address Line One 5420 Lyndon B. Johnson Freeway
Entity Address, Address Line Two Suite 500
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75240
City Area Code (214)
Local Phone Number 884-3777
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.01 per share
Trading Symbol CSW
Security Exchange Name NYSE
Entity Emerging Growth Company false