Investment in Unconsolidated Joint Ventures - Financial Position And Results of Operations From Our Investees (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Real estate	$ 377,383				$ 387,790				$ 377,383	$ 387,790
Other assets	80,975				62,802				80,975	62,802
Total assets	865,764				830,641				865,764	830,641
Liabilities and Equity
Total liabilities and equity	865,764				830,641				865,764	830,641
Total investment in unconsolidated joint ventures	60,425				67,655				60,425	67,655
Total assets	865,764				830,641				865,764	830,641
Liabilities	535,358				534,125				535,358	534,125
Revenues:
Rental revenue									51,909	46,231	$ 113,944
Other income									7,117	12,757	36,005
Total revenue	19,218	$ 11,937	$ 14,741	$ 13,130	14,957	$ 13,231	$ 15,204	$ 15,596	59,026	58,988	149,949
Expenses:
Depreciation and amortization									18,579	15,588	30,658
Net income (loss)									11,267	(21,743)	182,692
Equity in (loss) income from unconsolidated joint ventures									(379)	(2,313)	1,513
Unconsolidated joint venture
Liabilities and Equity
Mezzanine notes payable	119,939				120,211				119,939	120,211
Our share of partners' capital	93,334				108,035				93,334	108,035
Basis adjustment	(152,848)				(160,591)				(152,848)	(160,591)
Revenues:
Rental revenue									117,336	109,746	11,568
Other income									57,515	59,069	53,603
Total revenue									174,851	168,815	65,171
Expenses:
Operating expenses									110,108	109,588	57,922
Depreciation and amortization									31,921	45,453	8,506
Interest									57,455	61,867	6,432
Total expenses									199,484	216,908	72,860
Net income (loss)									(24,633)	(48,093)	(7,689)
Equity in (loss) income from unconsolidated joint ventures									(379)	(2,313)	1,513
Unconsolidated joint venture | VAA
Assets
Total assets	1,280,827				1,305,179				1,280,827	1,305,179
Liabilities and Equity
Total assets	1,280,827				1,305,179				1,280,827	1,305,179
Liabilities	1,107,861				1,104,070				1,107,861	1,104,070
Revenues:
Total revenue									123,115	115,377	12,877
Expenses:
Total expenses									149,817	165,773	$ 22,609
Unconsolidated joint venture | Unconsolidated Joint Ventures
Assets
Real estate	1,230,197				1,255,998				1,230,197	1,255,998
Other assets	113,537				107,006				113,537	107,006
Total assets	1,343,734				1,363,004				1,343,734	1,363,004
Liabilities and Equity
Mortgage notes payable	843,522				843,053				843,522	843,053
Mezzanine notes payable	239,878				240,422				239,878	240,422
Other liabilities	45,619				37,118				45,619	37,118
Our share of partners' capital	93,334				108,035				93,334	108,035
Outside partner's capital	121,381				134,376				121,381	134,376
Total liabilities and equity	1,343,734				1,363,004				1,343,734	1,363,004
Total assets	$ 1,343,734				$ 1,363,004				$ 1,343,734	$ 1,363,004