INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 0.2	$ 22.2	$ 19.0
Additions to current year tax positions	0.2	0.2	3.2
Additions to prior years’ tax positions	0.0	0.0	0.0
Reductions to prior years’ tax positions	0.0	(22.2)	0.0
Balance at end of year	$ 0.4	$ 0.2	$ 22.2