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Inventories and Floor Plan Notes Payable - Schedule of Floor Plan Notes Payable (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Floor plan notes payable: non-trade $ 1,489.4 $ 835.9
Floor plan notes payable 627.2 354.2
Total floor plan debt $ 2,116.6 $ 1,190.1