SCHEDULE III—REAL ESTATE AND ACCUMULATED DEPRECIATION - Notes to Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in total cost of properties
Balance at beginning of year	$ 10,630,560	$ 10,716,233	$ 8,820,346
Additions: acquisitions and capital expenditures	86,016	99,141	1,983,380
Dispositions	(330,091)	(145,836)	0
Reclassification of properties held for sale	(596,475)	(38,978)	(87,493)
Balance at close of year	10,403,000	10,630,560	10,716,233
Change in accumulated depreciation
Balance at beginning of year	3,047,016	2,851,121	2,574,297
Additions: depreciation expense	298,597	364,636	305,441
Dispositions	(153,699)	(143,814)	(28,617)
Reclassification of properties held for sale	(122,566)	(24,927)	0
Balance at close of year	3,069,348	3,047,016	2,851,121
Tax basis for federal income tax purpose	8,056,671
All Properties Excluding Properties Held For Sale
Change in total cost of properties
Balance at beginning of year	10,630,560	10,716,233
Balance at close of year	$ 9,790,010	$ 10,630,560	$ 10,716,233