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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Real estate	$ 296,363				$ 377,383				$ 296,363	$ 377,383
Other assets	84,004				79,613				84,004	79,613
Total assets	788,409				879,082				788,409	879,082
Liabilities and Equity
Total liabilities and equity	788,409				879,082				788,409	879,082
Investment in unconsolidated joint ventures	52,879				51,786				52,879	51,786
Revenues:
Rental revenue									37,808	51,909	$ 46,231
Other income									2,966	5,113	1,823
Total revenue	8,117	$ 10,034	$ 10,795	$ 11,828	18,679	$ 12,159	$ 13,431	$ 12,753	40,774	57,022	48,054
Expenses:
Depreciation and amortization									15,029	18,579	15,585
Net income (loss)									10,077	7,464	(26,137)
Our share of net income (loss) in unconsolidated joint venture									14,531	(519)	(2,758)
Unconsolidated joint venture
Liabilities and Equity
Our share of partners' capital	71,800				84,983				71,800	84,983
Our share of Mezzanine note payable and accrued interest	125,306				123,752				125,306	123,752
Basis adjustment	(144,227)				(156,949)				(144,227)	(156,949)
Investment in unconsolidated joint ventures	52,879				51,786				52,879	51,786
Revenues:
Rental revenue									131,455	117,336	109,746
Other income									7,706	6,240	5,631
Total revenue									139,161	123,576	115,377
Expenses:
Operating expenses									72,001	62,919	60,516
Depreciation and amortization									31,073	30,456	43,942
Interest									55,129	56,903	61,315
Total operating expenses									158,203	150,278	165,773
Net income (loss)									(19,042)	(26,702)	(50,396)
Our share of net income (loss) in unconsolidated joint venture									14,531	(519)	$ (2,758)
Unconsolidated joint venture | Unconsolidated Joint Ventures
Assets
Real estate	1,208,716				1,217,725				1,208,716	1,217,725
Other assets	72,151				61,472				72,151	61,472
Total assets	1,280,867				1,279,197				1,280,867	1,279,197
Liabilities and Equity
Mortgage notes payable	854,015				830,721				854,015	830,721
Mezzanine notes payable	242,942				239,878				242,942	239,878
Other liabilities	40,316				35,632				40,316	35,632
Our share of partners' capital	71,800				84,983				71,800	84,983
Outside partner's capital	71,794				87,983				71,794	87,983
Total liabilities and equity	$ 1,280,867				$ 1,279,197				$ 1,280,867	$ 1,279,197