Unaudited Condensed Consolidated Statements of Redeemable Noncontrolling Interest and Stockholders' Equity - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2020	$ 373,586			$ 94	$ 19	$ 242,181	$ 129,412	$ 1,880
Beginning balance, Shares at Dec. 31, 2020				94,310,309	19,076,500
Net (loss) income	22,361						22,361
Redeemable Noncontrolling Interest, Net income (loss)	(2,810)
Stock–based compensation expense	14,929					14,929
Issuance of common stock upon exercise of stock options	258					258
Issuance of common stock upon exercise of stock options, Shares				93,455
Issuance of common stock upon vesting of restricted stock units				$ 1		(1)
Issuance of common stock upon vesting of restricted stock units, Shares				473,883
Payment of withholding taxes on net share settlements of equity awards	(5,041)					(5,041)
Payment of withholding taxes on net share settlements of equity awards, Shares				(162,950)
Conversion of common stock				$ 1	$ (1)
Conversion of common stock, shares issued				929,597	(929,597)
Issuance of common stock upon for acquisition	103,645			$ 3		103,642
Issuance of common stock upon for acquisition, Shares				3,115,282
Acquisition of a 51% interest in CarOffer, LLC	58,031
Foreign currency translation adjustment	(1,083)							(1,083)
Ending balance at Mar. 31, 2021	508,655			$ 99	$ 18	355,968	151,773	797
Redeemable Noncontrolling Interest, Ending balance at Mar. 31, 2021	55,221
Ending balance, Shares at Mar. 31, 2021				98,759,576	18,146,903
Beginning balance at Dec. 31, 2020	373,586			$ 94	$ 19	242,181	129,412	1,880
Beginning balance, Shares at Dec. 31, 2020				94,310,309	19,076,500
Net (loss) income	50,413
Payment of withholding taxes on net share settlements of equity awards, Shares		(289,653)
Foreign currency translation adjustment	(835)
Ending balance at Jun. 30, 2021	549,181			$ 99	$ 18	368,194	179,825	1,045
Redeemable Noncontrolling Interest, Ending balance at Jun. 30, 2021	54,565
Ending balance, Shares at Jun. 30, 2021				99,060,368	18,146,903
Beginning balance at Mar. 31, 2021	508,655			$ 99	$ 18	355,968	151,773	797
Redeemable Noncontrolling Interest, Beginning balance at Mar. 31, 2021	55,221
Beginning balance, Shares at Mar. 31, 2021				98,759,576	18,146,903
Net (loss) income	28,052						28,052
Redeemable Noncontrolling Interest, Net income (loss)	(656)
Stock–based compensation expense	15,253					15,253
Issuance of common stock upon exercise of stock options	140					140
Issuance of common stock upon exercise of stock options, Shares				36,027
Issuance of common stock upon vesting of restricted stock units, Shares				391,468
Payment of withholding taxes on net share settlements of equity awards	(3,167)					(3,167)
Payment of withholding taxes on net share settlements of equity awards, Shares		(126,703)		(126,703)
Foreign currency translation adjustment	248							248
Ending balance at Jun. 30, 2021	549,181			$ 99	$ 18	368,194	179,825	1,045
Redeemable Noncontrolling Interest, Ending balance at Jun. 30, 2021	54,565
Ending balance, Shares at Jun. 30, 2021				99,060,368	18,146,903
Beginning balance at Dec. 31, 2021	516,841			$ 102	$ 16	387,868	129,258	(403)
Redeemable Noncontrolling Interest, Beginning balance at Dec. 31, 2021	162,808
Beginning balance, Shares at Dec. 31, 2021		101,773,034	15,999,173	101,773,034	15,999,173
Net (loss) income	19,910						19,910
Redeemable Noncontrolling Interest, Net income (loss)	(1,072)
Stock–based compensation expense	15,353					15,353
Issuance of common stock upon exercise of stock options	680					680
Issuance of common stock upon exercise of stock options, Shares				74,163
Redeemable noncontrolling interest , accretion to redemption value	82,000
Accretion of redeemable noncontrolling interest to redemption value	(82,000)						(82,000)
Issuance of common stock upon vesting of restricted stock units, Shares				451,084
Payment of withholding taxes on net share settlements of equity awards	(5,430)					(5,430)
Payment of withholding taxes on net share settlements of equity awards, Shares				(155,736)
Tax distribution to redeemable noncontrolling interest holders	(3,986)
Foreign currency translation adjustment	(489)							(489)
Ending balance at Mar. 31, 2022	464,865			$ 102	$ 16	398,471	67,168	(892)
Redeemable Noncontrolling Interest, Ending balance at Mar. 31, 2022	239,750
Ending balance, Shares at Mar. 31, 2022				102,142,545	15,999,173
Beginning balance at Dec. 31, 2021	516,841			$ 102	$ 16	387,868	129,258	(403)
Redeemable Noncontrolling Interest, Beginning balance at Dec. 31, 2021	162,808
Beginning balance, Shares at Dec. 31, 2021		101,773,034	15,999,173	101,773,034	15,999,173
Net (loss) income	39,194
Payment of withholding taxes on net share settlements of equity awards, Shares		(303,269)
Foreign currency translation adjustment	(2,075)
Ending balance at Jun. 30, 2022	461,835			$ 102	$ 16	407,363	56,832	(2,478)
Redeemable Noncontrolling Interest, Ending balance at Jun. 30, 2022	264,505
Ending balance, Shares at Jun. 30, 2022		102,465,807	15,999,173	102,465,807	15,999,173
Beginning balance at Mar. 31, 2022	464,865			$ 102	$ 16	398,471	67,168	(892)
Redeemable Noncontrolling Interest, Beginning balance at Mar. 31, 2022	239,750
Beginning balance, Shares at Mar. 31, 2022				102,142,545	15,999,173
Net (loss) income	19,284						19,284
Redeemable Noncontrolling Interest, Net income (loss)	(1,223)
Stock–based compensation expense	14,697					14,697
Issuance of common stock upon exercise of stock options	25					25
Issuance of common stock upon exercise of stock options, Shares				23,240
Redeemable noncontrolling interest , accretion to redemption value	29,620
Accretion of redeemable noncontrolling interest to redemption value	(29,620)						(29,620)
Issuance of common stock upon vesting of restricted stock units, Shares				447,555
Payment of withholding taxes on net share settlements of equity awards	(5,830)					(5,830)
Payment of withholding taxes on net share settlements of equity awards, Shares		(147,533)		(147,533)
Tax distribution to redeemable noncontrolling interest holders	(3,642)
Foreign currency translation adjustment	(1,586)							(1,586)
Ending balance at Jun. 30, 2022	461,835			$ 102	$ 16	$ 407,363	$ 56,832	$ (2,478)
Redeemable Noncontrolling Interest, Ending balance at Jun. 30, 2022	$ 264,505
Ending balance, Shares at Jun. 30, 2022		102,465,807	15,999,173	102,465,807	15,999,173