Segment Information - Additional Information (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment information
Number of reportable segments | segment		2
Total revenues		$ 226,102	$ 314,303
Net (loss) income		(3,855)	127,114
Total assets	[1]	12,044,045		$ 11,707,567
Marketing, general and administrative		22,885	19,570
Operating Segments | Real Estate Segment
Segment information
Total revenues		206,829	275,770
Net (loss) income		(20,027)	111,233
Total assets		10,896,203		10,579,899
Operating Segments | Debt and Preferred Equity Segment
Segment information
Total revenues		19,273	38,533
Net (loss) income		16,172	$ 15,881
Total assets		$ 1,147,842		$ 1,127,668

[1] The Company's consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs"). See Note 2. The consolidated balance sheets include the following amounts related to our consolidated VIEs, excluding the Operating Partnership: $179.6 million and $41.2 million of land, $282.3 million and $57.9 million of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $53.2 million and $37.8 million of right of use assets, $16.4 million and $10.3 million of accumulated depreciation, $297.1 million and $289.5 million of other assets included in other line items, $368.6 million and $94.0 million of real estate debt, net, $0.9 million and $0.7 million of accrued interest payable, $45.3 million and $29.9 million of lease liabilities, and $31.2 million and $56.6 million of other liabilities included in other line items as of March 31, 2021 and December 31, 2020, respectively.