SCHEDULE III Real Estate and Accumulated Depreciation - Investment in Real Estate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at beginning of year	$ 3,642,007	$ 3,615,025	$ 3,563,304
Other acquisitions	22,227	0	0
Improvements	146,030	27,911	53,373
Disposals	(2,058)	(929)	(1,652)
Other deductions	(16,195)
Balance at end of year	$ 3,792,011	$ 3,642,007	$ 3,615,025