Related Party Transactions - Transactions with Accu-Trade (Details) - Accu-Trade, LLC - USD ($) $ in Millions	11 Months Ended	12 Months Ended
Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Outstanding equity interest acquired, percent		20.00%
Due to related party		$ 1.1	$ 0.9
Sales
Related Party Transaction [Line Items]
Costs under agreement	$ 1.2	1.0	1.2
Cost of revenue
Related Party Transaction [Line Items]
Costs under agreement	$ 1.0	$ 5.4	$ 1.7

Carrying amount as of the balance sheet date of obligations due all related parties.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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+ Details