Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 78,954	$ 110,373	$ 77,553
Other comprehensive income:
Foreign currency translation adjustment	(1,241)	(2,283)	2,230
Consolidated comprehensive income	77,713	108,090	79,783
Comprehensive (loss) income attributable to redeemable noncontrolling interests	(5,433)	1,129
Comprehensive income attributable to CarGurus, Inc.	$ 83,146	$ 106,961	$ 79,783