Co-investments - Schedule of Co-Investments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2026 USD ($) investment	Dec. 31, 2025 USD ($)
Schedule of Equity Method Investments [Line Items]
Total co-investments, net	$ 504,017	$ 531,713
Distributions in excess of investments in co-investments	108,854	98,837
Total operating and other co-investments, net
Schedule of Equity Method Investments [Line Items]
Total co-investments, net	$ 305,745	304,371
Wesco I, Wesco III, Wesco IV, Wesco V, and Wesco VI
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage (in percent)	55.00%
Total co-investments, net	$ 62,358	73,002
BEX IV and 500 Folsom
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage (in percent)	50.00%
Total co-investments, net	$ 130,262	135,518
Other
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage (in percent)	50.00%
Total co-investments, net	$ 113,125	95,851
Total preferred interest co-investments
Schedule of Equity Method Investments [Line Items]
Total co-investments, net	198,272	227,342
Total preferred interest co-investments | Investments in Majority-owned Subsidiaries
Schedule of Equity Method Investments [Line Items]
Total co-investments, net	31,200	52,800
Wesco I, Wesco III, and Wesco IV
Schedule of Equity Method Investments [Line Items]
Distributions in excess of investments in co-investments	$ 108,900	$ 98,800
Wesco VII LLC
Schedule of Equity Method Investments [Line Items]
Number of investments with a commitment to fund | investment	3