Floor Plan Financing - Summary of Floor Plan Payables (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument, Redemption [Line Items]
Trade floor plan payables	$ 72,714	$ 0
Non-trade floor plan payables	165,239	$ 0
Daimler Truck Financial
Debt Instrument, Redemption [Line Items]
Trade floor plan payables	46,012
PACCAR Financial Services
Debt Instrument, Redemption [Line Items]
Trade floor plan payables	26,702
PNC Equipment Finance, LLC
Debt Instrument, Redemption [Line Items]
Non-trade floor plan payables	$ 165,239