Related Party Transactions (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transactions Revenue [Abstract]
Other assets	[1]	$ 27,543	$ 20,014
Affiliated Entity
Related Party Transactions Revenue [Abstract]
Investment advisory and administrative fees		328,398	386,000	$ 389,648
Distribution and service fees		28,200	35,093	37,630
Total		356,598	421,093	427,278
Costs and Expenses, Related Party		16,200	18,100	$ 16,600
Accounts and Other Receivables, Net, Current		32,500	32,900
Accounts Payable, Current		1,900	1,000
Cohen & Steers Income Opportunities REIT
Related Party Transactions Revenue [Abstract]
Other assets		7,300	$ 3,500
Net Asset Value Threshold		$ 1,000,000
Debt Instrument, Term		60 months

[1] at December 31, 2023 and 2022 attributable to variable interest entities consolidated by the Company. Refer to Note 4, Investments for further discussion.