DISCONTINUED OPERATIONS - Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Total assets of discontinued operations	$ 0.0	$ 11.4
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Total liabilities of discontinued operations	0.3	8.4
Discontinued Operations, Disposed of by Means Other than Sale
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Cash	0.0	1.8
Accounts receivable, net	0.0	1.3
Inventory	0.0	8.3
Total assets of discontinued operations	0.0	11.4
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Accounts payable and accrued expenses	0.3	3.1
Vehicle floor plan payable	0.0	5.3
Total liabilities of discontinued operations	$ 0.3	$ 8.4