LONG-TERM COMPENSATION PLANS - Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation	$ 14.8	$ 9.4	$ 17.7
Unrecognized compensation expense for awards expected to vest	$ 19.4
Weighted average remaining vesting period (months)	19 months
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation	$ 14.8	9.3	17.4
Weighted average remaining vesting period (months)	16 months
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation	$ 0.0	$ 0.1	$ 0.3