Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 492,426	$ 366,081	$ 536,935
Other comprehensive income (loss) (net change by component):
Available-for-sale securities	(3,104)	(6,939)	(2,519)
Foreign currency translation	64	0	(5,209)
Other comprehensive loss	(3,040)	(6,939)	(7,728)
Comprehensive income	489,386	359,142	529,207
Less: Comprehensive income attributable to non-controlling interests	(44,687)	(34,392)	(27,271)
Comprehensive income attributable to Starwood Property Trust, Inc.	$ 444,699	$ 324,750	$ 501,936