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Cover
Nov. 04, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 04, 2025
Entity Registrant Name Compass, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-40291
Entity Tax Identification Number 30-0751604
Entity Address, Address Line One 110 Fifth Avenue, 4th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10011
City Area Code (646)
Local Phone Number 982-0353
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A Common Stock, $0.00001 par value per share
Trading Symbol COMP
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0001563190
Amendment Flag false