Reportable Segments - Reconciliation of NOI from Rental Real Estate Specific to Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	$ 2,735,180	$ 2,463,997	$ 2,571,705
Property and maintenance expense	(483,865)	(453,532)	(440,998)
Real estate taxes and insurance expense	(388,412)	(397,105)	(381,562)
Operating income	1,116,046	1,675,841	1,317,990
Same Store, Non-same Store and Other
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	2,735,180	2,463,997	2,571,705
Property and maintenance expense	(483,865)	(453,532)	(440,998)
Real estate taxes and insurance expense	(388,412)	(397,105)	(381,562)
Total operating expenses	(872,277)	(850,637)	(822,560)
Operating income	$ 1,862,903	$ 1,613,360	$ 1,749,145