Revenue Information - Schedule of Revenue Categories (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Revenue Information
Revenue	$ 65,105	$ 78,917
Dealer revenue
Revenue Information
Revenue	62,057	73,798
OEM incentives revenue
Revenue Information
Revenue	2,797	3,523
Other revenue
Revenue Information
Revenue	$ 251	$ 1,596

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details