Summary of Significant Accounting Policies - Summary of Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Mezzanine investment	$ 307,362	$ 280,258
Investments in securitization trust	100,151	94,251
Right of use lease assets	56,783	61,911
Intangible assets, net	4,438	5,716
Notes receivable, net	894	4,715
Software, equipment, and leasehold improvements	6,531	25,750
Accounts receivable, net	21,458	18,668
Prepaid expenses, real estate taxes and insurance	10,970	10,831
Deferred tax asset, net (Note 11)		80,516
Deferred costs, deposits and other	67,439	21,977
Total other assets	$ 576,026	$ 604,593