v3.26.1
DocumentAndEntityInformation
Sep. 04, 2026
Document Information Line Items  
Entity Central Index Key 0001739445
Document Type 8-K
Document Period End Date Sep. 04, 2026
Entity Registrant Name Arcosa, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 1-38494
Entity Tax Identification Number 82-5339416
Entity Address, Address Line One 500 N. Akard Street
Entity Address, Address Line Two Suite 400
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75201
City Area Code 972
Local Phone Number 942-6500
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 ACA
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Flag false