Schedule III Properties And Accumulated Depreciation - Summary Of Historical Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance, beginning of year	$ 16,886,592	$ 17,055,016	$ 16,915,936
Additions during period (acquisitions and improvements)	6,514,218	833,836	223,163
Deductions during period (dispositions, impairments and assets held for sale)	(257,822)	(1,002,260)	(84,083)
Balance, end of year	$ 23,142,988	$ 16,886,592	$ 17,055,016