Reportable Segments - Reconciliation of Net Income to Net Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net income		$ 167,445	$ 278,996	$ 238,114
Net operating income from unconsolidated joint ventures		9,524	19,223	18,836
Total Revenues		(762,290)	(755,073)	(740,340)
Reimbursed expenses		2,024	2,476	1,580
General and administrative expenses		28,319	29,321	27,034
Interest expense		72,537	67,027	60,605
Impairment	$ 14,800	0	0	14,829
Depreciation and amortization		295,587	288,092	288,648
Transaction costs		0	0	428
Other expenses		2,134	2,131	2,091
Income from unconsolidated joint ventures		(7,700)	(6,801)	(7,947)
Gain on sales of investment in unconsolidated joint ventures		(56,267)	(13,083)	(45,767)
Gain (loss) on investment property transactions		9	(152,547)	(90,125)
Gain on extinguishment of debt		(169)	0	0
Net Operating Income		502,200	493,720	486,034
Fee income
Segment Reporting Information [Line Items]
Total Revenues		(6,119)	(15,559)	(18,226)
Termination fee income
Segment Reporting Information [Line Items]
Total Revenues		(2,464)	(5,105)	(3,835)
Other income
Segment Reporting Information [Line Items]
Total Revenues		$ (2,660)	$ (451)	$ (231)