Investment in Unconsolidated Real Estate Ventures - Summary of Results of Operations of Real Estate Ventures with Interests (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]
Revenue	$ 31,151	$ 35,059
Operating expenses	(17,961)	(18,718)
Interest expense, net	(4,989)	(3,920)
Depreciation and amortization	(12,523)	(13,712)
Net loss	(4,322)	(1,291)
Company's share of net loss	(1,862)	(1,312)
Basis adjustments and other	(29)	(46)
Equity in loss of Real Estate Ventures	(1,891)	(1,358)
MAP Venture
Schedule of Equity Method Investments [Line Items]
Revenue	17,313	18,288
Operating expenses	(12,228)	(12,155)
Interest expense, net	(2,047)	(2,536)
Depreciation and amortization	(6,058)	(6,349)
Net loss	$ (3,020)	$ (2,752)
Ownership interest %	50.00%	50.00%
Company's share of net loss	$ (1,510)	$ (1,376)
Basis adjustments and other	(10)	(56)
Equity in loss of Real Estate Ventures	(1,520)	(1,432)
Other
Schedule of Equity Method Investments [Line Items]
Revenue	13,838	16,771
Operating expenses	(5,733)	(6,563)
Interest expense, net	(2,942)	(1,384)
Depreciation and amortization	(6,465)	(7,363)
Net loss	(1,302)	1,461
Company's share of net loss	(352)	64
Basis adjustments and other	(19)	10
Equity in loss of Real Estate Ventures	$ (371)	$ 74