Real Estate Investments - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) apartment investment	Dec. 31, 2023 USD ($) investment property apartment	Dec. 31, 2022 USD ($) apartment investment
Schedule of Equity Method Investments [Line Items]
Management and other fees from affiliates	$ 10,265	$ 11,131	$ 11,139
Number of technology co-investments | investment	5	5
Co-investment	$ 57,300	$ 44,200
Co-investment, committed capital	86,000	86,000
Co-investments	855,741	996,245
Co-investment	$ 935,014	$ 1,061,733
Number of investments with a commitment to fund | investment	19	2	7
Preferred equity investment, commitment to fund	$ 399,400
Preferred equity investment, funded loan commitments	$ 364,400
Annualized preferred return rate	9.00%
Impairment loss from unconsolidated co-investment	$ 3,700	$ 33,700
Proceeds from dispositions of co-investments	$ 58,800	72,300	$ 132,600
Commitment to fund preferred equity investment in the project		$ 18,800	$ 84,900
Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Number of investments with a commitment to fund | investment	2	2	3
Real Estate Predevelopment Projects
Schedule of Equity Method Investments [Line Items]
Actual cost of active development projects	$ 52,700
Total operating and other co-investments, net
Schedule of Equity Method Investments [Line Items]
Number of apartments owned through joint ventures | apartment	7,694	10,425
Co-investments	$ 379,500	$ 437,400
Total development co-investments
Schedule of Equity Method Investments [Line Items]
Number of apartments owned through joint ventures | property		264
Co-investments		$ 14,600
Total preferred interest co-investments
Schedule of Equity Method Investments [Line Items]
Co-investment	$ 476,300	$ 544,300
Preferred Equity Investment Property In Washington and California
Schedule of Equity Method Investments [Line Items]
Number of investments with a commitment to fund | investment	1
Preferred Equity Investment Property in Southern California
Schedule of Equity Method Investments [Line Items]
Number of investments with a commitment to fund | investment		2	2
Early redemption fee		$ 300	$ 900
Apartment Building
Schedule of Equity Method Investments [Line Items]
Purchase price	$ 849,400
Number of units acquired | apartment	3,579
Number of apartment units | apartment	697	239	250
Proceeds from sale of real estate		$ 91,700	$ 160,000
Gain (loss) on sale of properties		54,500	$ 94,400
Management and other fees from affiliates	$ 205,700
Apartment Building | Hacienda at Camarillo Oaks
Schedule of Equity Method Investments [Line Items]
Purchase price		$ 23,100
Number of units acquired | apartment		73
Land
Schedule of Equity Method Investments [Line Items]
Gain (loss) on sale of properties		$ 4,700
Management and other fees from affiliates		8,700
Land and Land Improvements
Schedule of Equity Method Investments [Line Items]
Purchase price	231,600
Land and Land Improvements | CPPIB Interest
Schedule of Equity Method Investments [Line Items]
Purchase price		5,500
Building and Improvements
Schedule of Equity Method Investments [Line Items]
Purchase price	1,178,000
Building and Improvements | CPPIB Interest
Schedule of Equity Method Investments [Line Items]
Purchase price		18,000
Prepaid Expenses and Other Assets
Schedule of Equity Method Investments [Line Items]
Purchase price	9,000
Prepaid Expenses and Other Assets | CPPIB Interest
Schedule of Equity Method Investments [Line Items]
Purchase price		$ 100
Real Estate Under Development
Schedule of Equity Method Investments [Line Items]
Purchase price	26,300
Fixed rate mortgage notes payable
Schedule of Equity Method Investments [Line Items]
Purchase price	$ 106,000