OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Assets [Abstract]
Loaner vehicles	$ 262.6	$ 178.2
Contract assets (see Note 2)	53.8	40.5
Prepaid expenses	41.4	43.0
Notes receivable	5.2	12.9
Prepaid taxes	18.4	5.8
Deposits	4.5	4.1
Other	3.1	3.6
Other current assets	$ 388.9	$ 288.1