Acquisition - Additional Information (Details) - USD ($) $ in Thousands			3 Months Ended				6 Months Ended
	Feb. 01, 2022	Jan. 07, 2021	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Acquisition [Line Items]
Net income (loss)			$ (115,089)	$ (310,459)	$ (65,807)	$ (77,189)	$ (425,548)	$ (142,996)
Acquisition-related cost							5,700
Amortization expense for intangible assets			6,800		$ 1,600		11,800	3,000
Non-recurring tax adjustment (benefit)							24,100	$ 30,200
Vast Holdings, Inc. (“d/b/a CarStory”)
Business Acquisition [Line Items]
Business acquisition, date of acquisition		Jan. 07, 2021
Percentage of business acquisition rate		100.00%
Fair value of consideration transferred		$ 116,568
UACC
Business Acquisition [Line Items]
Business acquisition, date of acquisition	Feb. 01, 2022
Revenues			37,000				86,000
Net income (loss)			1,000				20,200
Transaction costs			$ 5,700				$ 5,700
Percentage of business acquisition rate	100.00%
Fair value of consideration transferred	$ 315,400