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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Floorplan Notes Payable    
Condensed Cash Flow Statements, Captions [Line Items]    
Repayment of sellers floorplan notes payable $ 5.3 $ 0.0