ASSETS HELD FOR SALE - Assets Held for Sale and Liabilities Associated with the Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets:
Inventories	$ 84.5	$ 3.4
Loaners, net	4.5	0.9
Property and equipment, net	136.6	24.0
Operating lease right-of-use assets	2.1	0.0
Goodwill	26.1	0.9
Franchise rights	88.5	0.0
Total Assets	342.2	29.1
Liabilities:
Floor plan notes payable—non-trade	0.0	2.8
Loaners/ Notes payable	0.0	0.8
Current maturities of long-term debt	0.0	0.6
Current maturities of operating leases	0.2	0.0
Long-term debt	0.0	6.2
Operating lease liabilities	1.9	0.0
Total liabilities associated with assets held for sale	2.1	10.5
Net assets held for sale	$ 340.1	$ 18.7