Co-investments - Combined Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Rental properties and real estate under development	$ 22,668		$ 22,668			$ 24,857
Total assets	12,245,273		12,245,273			12,372,905
Debt	6,451,913		6,451,913			6,450,639
Other liabilities	44,440		44,440			43,441
Equity	5,762,005	$ 6,006,585	5,762,005	$ 6,006,585	$ 5,796,857	5,895,116	$ 6,138,207	$ 6,176,508
Total liabilities and equity	12,245,273		12,245,273			12,372,905
Equity Method Investment, Summarized Financial Information [Abstract]
Property revenues	416,043	399,978	828,464	781,883
Interest expense	(52,600)	(50,477)	(103,645)	(100,854)
General and administrative	(13,813)	(13,127)	(29,124)	(25,369)
Net income	105,756	61,690	267,350	140,065
Affiliated Entity | Total co-investment
Equity Method Investment, Summarized Financial Information [Abstract]
Company's share of net income	1,900	1,800	3,900	3,600
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Rental properties and real estate under development	5,066,160		5,066,160			4,955,051
Other assets	279,816		279,816			294,663
Total assets	5,345,976		5,345,976			5,249,714
Debt	3,511,734		3,511,734			3,397,113
Other liabilities	294,947		294,947			264,872
Equity	1,539,295		1,539,295			1,587,729
Total liabilities and equity	5,345,976		5,345,976			5,249,714
Company's share of equity	1,074,180		1,074,180			$ 1,084,959
Equity Method Investment, Summarized Financial Information [Abstract]
Property revenues	99,954	93,576	200,547	178,176
Property operating expenses	(36,868)	(29,509)	(78,946)	(65,302)
Net operating income	63,086	64,067	121,601	112,874
Interest expense	(37,314)	(21,779)	(69,998)	(40,081)
General and administrative	(8,556)	(6,392)	(11,536)	(10,359)
Depreciation and amortization	(42,917)	(39,381)	(84,305)	(78,188)
Net income	(25,701)	(3,485)	(44,238)	(15,754)
Company's share of net income	$ 12,237	$ (8,400)	$ 23,108	$ 12,771