Reportable Segments - Reconciliation of NOI from Rental Real Estate Specific to Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	$ 717,309	$ 687,030	$ 1,422,397	$ 1,340,378
Property and maintenance expense	(124,771)	(116,355)	(262,350)	(241,229)
Real estate taxes and insurance expense	(103,080)	(101,850)	(209,749)	(202,538)
Operating income	218,461	309,934	516,049	459,672
Same Store, Non-same Store and Other
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Rental income	717,309	687,030	1,422,397	1,340,378
Property and maintenance expense	(124,771)	(116,355)	(262,350)	(241,229)
Real estate taxes and insurance expense	(103,080)	(101,850)	(209,749)	(202,538)
Total operating expenses	(227,851)	(218,205)	(472,099)	(443,767)
Operating income	$ 489,458	$ 468,825	$ 950,298	$ 896,611

The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property.

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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The aggregate total of real estate taxes and insurance expense.

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