Revenue Recognition - Summary of Revenue from Contracts with Customers by Services and Products (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 1,655,035	$ 951,373	$ 551,451
Marketplace
Disaggregation of Revenue [Line Items]
Revenue	658,771	636,942	$ 551,451
Dealer-to-Dealer
Disaggregation of Revenue [Line Items]
Revenue	320,119	224,831
IMCO
Disaggregation of Revenue [Line Items]
Revenue	$ 676,145	$ 89,600