Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.21.2
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Other Commitments [Line Items]    
Maximum exposure associated with general indemnifications $ 4.0 $ 25.0
General indemnifications minimum expiration period 1 year  
General indemnifications maximum expiration period 3 years  
Percentage of dealership that is accounted for under the equity method 50.00%  
Contingent liability reserve balance after reduction $ 4.3 $ 4.3