v3.26.3
Fair Value - Fair Value Option Disclosure (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
CNSREIT    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Fair value $ 121,909 $ 80,865
CNSREIT | Non-Traded REIT    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Ownership Interest 31.00% 36.90%
Cohen & Steers Short Duration Preferred and Income Active ETF    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Fair value $ 19,305  
Cohen & Steers Short Duration Preferred and Income Active ETF | ETFs    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Ownership Interest 30.90%  
Cohen & Steers Natural Resources Active ETF    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Fair value $ 21,458 $ 17,906
Cohen & Steers Natural Resources Active ETF | ETFs    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Ownership Interest 17.40% 35.70%
Cohen & Steers Infrastructure Opportunities Active ETF    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Fair value $ 15,977  
Cohen & Steers Infrastructure Opportunities Active ETF | ETFs    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Ownership Interest 32.60%