Co-investments - Summary of Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Co-investments	$ 1,115,696	$ 1,142,257
Distributions in excess of investments in co-investments	28,846	35,545
Total operating and other co-investments, net
Schedule of Equity Method Investments [Line Items]
Co-investments	$ 601,667	565,251
Wesco I, Wesco III, Wesco IV, Wesco V, and Wesco VI
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage	52.00%
Co-investments	$ 221,781	168,198
BEXAEW, BEX II, BEX IV, and 500 Folsom
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage	50.00%
Co-investments	$ 267,338	270,550
Other
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage	52.00%
Co-investments	$ 112,548	126,503
Distributions in excess of investments in co-investments	$ 200
Total development co-investments
Schedule of Equity Method Investments [Line Items]
Weighted average company ownership percentage	50.00%
Co-investments	$ 11,836	11,076
Total preferred interest co-investments
Schedule of Equity Method Investments [Line Items]
Co-investments	502,193	565,930
Total preferred interest co-investments | Investments in Majority-owned Subsidiaries
Schedule of Equity Method Investments [Line Items]
Co-investments	72,600	$ 71,100
Wesco I
Schedule of Equity Method Investments [Line Items]
Distributions in excess of investments in co-investments	$ 28,700