Investments in Unconsolidated Real Estate Ventures - Condensed Combined Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Combined balance sheet information:
Real estate, net	$ 2,487,578		$ 2,493,961
Other assets, net	298,937		291,092
Total assets	2,786,515		2,785,053
Borrowings, net	1,200,531		1,187,856
Other liabilities, net	173,965		168,243
Total liabilities	1,374,496		1,356,099
Total equity	1,412,019		1,428,954
Total liabilities and equity	2,786,515		$ 2,785,053
Combined income statement information:
Total revenue	69,579	$ 59,991
Operating income	(482)	(433)
Net loss	$ (18,165)	$ (15,227)