Segment Information - Additional Information (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment information
Number of reportable segments | segment		2
Total revenues		$ 314,303	$ 304,255
Net income		127,114	52,769
Total assets	[1]	13,220,607		$ 12,766,320
Marketing, general and administrative		19,570	25,979
Operating Segments | Real Estate Segment
Segment information
Total revenues		275,770	254,224
Net income		111,233	21,572
Total assets		11,345,239		11,063,155
Operating Segments | Debt and Preferred Equity Segment
Segment information
Total revenues		38,533	50,031
Net income		15,881	$ 31,197
Total assets		$ 1,875,368		$ 1,703,165

[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: $199.0 million and $205.2 million of land, $501.2 million and $481.9 million of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $61.7 million and $61.7 million of right of use assets, $17.4 million and $17.6 million of accumulated depreciation, $179.2 million and $169.5 million of other assets included in other line items, $468.6 million and $457.1 million of real estate debt, net, $1.1 million and $1.2 million of accrued interest payable, $57.9 million and $57.7 million of lease liabilities, and $45.8 million and $43.7 million of other liabilities included in other line items as of March 31, 2020 and December 31, 2019, respectively.