v3.26.3
Cover Page
Oct. 15, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date Oct. 15, 2026
Entity Registrant Name Cohen & Steers, Inc.
Entity Central Index Key 0001284812
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 001-32236
Entity Tax Identification Number 14-1904657
Entity Address, Address Line One 1166 Avenue of the Americas
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10036
City Area Code 212
Local Phone Number 832-3232
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 CNS
Security Exchange Name NYSE
Entity Emerging Growth Company false