Schedule III- Summary of Changes in Total Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance, beginning of year	$ 3,220,337	$ 3,210,926
Improvements and development	22,342	49,075
Impairment of assets	(11,474)	0
Dispositions	(20,477)	(39,661)
Write-off of fully depreciated assets	(254)	(3)
Reclassification to held for sale	(4,113)	0
Balance, end of year	3,206,361	3,220,337
Balance, end of year – held for sale	8,780	1,384
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance, beginning of year	1,308,427	1,202,722
Depreciation expense	109,930	116,369
Impairment of assets	(83)	0
Dispositions	(12,827)	(13,808)
Write-off of fully depreciated assets	(254)	(3)
Reclassification to held for sale	67	3,147
Balance, end of year	1,405,260	1,308,427
Balance, end of year – held for sale	$ 0	$ 0