Schedule III - Schedule of Real Estate and Accumulated Depreciation (Reconciliation of Real Estate Accumulated Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule III - Schedule of Real Estate and Accumulated Depreciation [Abstract]
Gross amount of accumulated depreciation at beginning	$ (3,644,238)	$ (3,383,370)	$ (3,133,061)
Depreciation	(285,918)	(273,655)	(275,947)
Other	(3,382)	(91)	(38)
Total additions	(289,300)	(273,746)	(275,985)
Amount of accumulated depreciation for assets sold or disposed	7,505	3,638	4,244
Other	140	9,240	21,432
Total deductions	7,645	12,878	25,676
Balance at end	$ (3,925,893)	$ (3,644,238)	$ (3,383,370)