Investments in Unconsolidated Entities (Summarized Financial Information Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Schedule of Equity Method Investments [Line Items]
Net income (loss) attributable to common stockholders	$ 32,655	$ 37,278	$ 70,511	$ (92,120)
Significant non-consolidated entity | Mortgage loan originator
Schedule of Equity Method Investments [Line Items]
Revenues	113,263	67,960	190,618	126,675
Net income (loss) attributable to common stockholders	$ 19,186	$ 12,020	$ 31,712	$ 12,939