Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Schedule of Condensed Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Combined and Condensed Statements of Operations
Total revenues	$ 255,484	$ 295,327	$ 259,681
Depreciation and amortization	(149,793)	(125,443)	(117,549)
Company’s equity in (losses) earnings of unconsolidated affiliates	(1,237)	8,922	9,302
Unconsolidated Affiliates
Combined and Condensed Statements of Operations
Total revenues	73,478	88,893	79,555
Operating and other expenses	(26,389)	(24,932)	(22,957)
Interest expense	(20,172)	(21,874)	(19,954)
Depreciation and amortization	(28,102)	(25,358)	(22,228)
Loss on disposition of properties			(1,673)
Net (loss) income attributable to unconsolidated affiliates	(1,185)	16,729	12,743
Company’s share of equity in net (loss) income of unconsolidated affiliates	965	11,772	12,345
Operating Partnership, as General Partner or Managing Member
Combined and Condensed Statements of Operations
Basis differential amortization	$ (2,202)	$ (2,850)	$ (3,043)