NOTES PAYABLE AND LINES OF CREDIT - Floor Plan Notes Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory [Line Items]
Floor plan notes payable	$ 97,278	$ 17,812
Floor plans notes payable - trade
Inventory [Line Items]
Floor plan notes payable	15,119	0
Floor plans notes payable - non-trade
Inventory [Line Items]
Floor plan notes payable	$ 82,159	$ 17,812