Consolidated Income Statements - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue
Total Revenue		$ 1,655,035	$ 951,373	$ 551,451
Cost of revenue
Total Cost of revenue	[1]	997,482	294,015	42,706
Gross profit		657,553	657,358	508,745
Operating expenses:
Sales and marketing		336,708	290,574	256,979
Product, technology, and development		123,768	106,423	85,726
General and administrative		73,117	97,678	62,166
Depreciation and amortization		15,482	14,415	6,118
Total operating expenses		549,075	509,090	410,989
Income from operations		108,478	148,268	97,756
Other income, net:
Interest income		3,845	120	1,075
Other (expense) income, net		(961)	972	279
Total other income, net		2,884	1,092	1,354
Income before income taxes		111,362	149,360	99,110
Provision for income taxes		32,408	38,987	21,557
Consolidated net income		78,954	110,373	77,553
Net (loss) income attributable to redeemable noncontrolling interest		(5,433)	1,129
Net income Attributable to CarGurus, Inc		84,387	109,244	77,553
Accretion of redeemable noncontrolling interest to redemption value		(109,398)	109,398
Net income (loss) attributable to common stockholders		$ 193,785	$ (154)	$ 77,553
Net income (loss) per share attributable to common stockholders: (Note 11)
Basic		$ 1.64	$ 0.00	$ 0.69
Diluted		$ 0.62	$ 0.00	$ 0.68
Weighted-average number of shares of common stock used in computing net income (loss) per share attributable to common stockholders:
Basic		118,474,991	117,142,062	112,854,524
Diluted		128,150,974	117,142,062	113,849,815
Marketplace
Revenue
Total Revenue		$ 658,771	$ 636,942	$ 551,451
Cost of revenue
Total Cost of revenue	[1]	56,040	47,689	$ 42,706
Wholesale
Revenue
Total Revenue		237,635	195,127
Cost of revenue
Total Cost of revenue	[1]	176,446	127,679
Product
Revenue
Total Revenue		758,629	119,304
Cost of revenue
Total Cost of revenue	[1]	$ 764,996	$ 118,647

[1] Includes depreciation and amortization expense for the years ended December 31, 2022, 2021, and 2020 of $29,852, $26,061, and $5,224, respectively.