ACQUISITIONS - Allocation of Purchase Price (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Aug. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Estimated fair value of liabilities assumed:
Goodwill	$ 260,922		$ 26,887	$ 26,887
RideNow
Estimated fair value of assets acquired:
Cash		$ 34,454
Contracts in transit		10,878
Accounts receivable		10,124
Inventory		127,080
Prepaid expenses		1,785
Right-of-use assets		126,886
Property & equipment		15,509
Franchise rights		282,000
Other intangible assets, net		22,129
Other assets		119
Total assets acquired		630,964
Estimated fair value of liabilities assumed:
Accounts payable, accrued expenses and other current liabilities		43,409
Notes payable - floor plan		47,161
Lease liabilities		130,181
Notes payable		6,549
Deferred tax liabilities		30,548
Other long-term liabilities		6,210
Total liabilities assumed		264,058
Total net assets acquired		366,906
Goodwill		234,452
Total consideration		$ 601,358