PENSION PLANS - Retirement Plan Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Company defined benefit plans:
Service cost	$ 3.1	$ 2.9	$ 2.9
Interest cost	$ 3.8	$ 3.6	$ 2.4
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent
Expected return on plan assets	$ (0.7)	$ (0.9)	$ (0.7)
Net amortization	(0.2)	(0.4)	0.3
Net periodic pension expense	6.0	5.2	4.9
Settlement	0.7	1.2	(0.1)
Defined contribution plans	1.7	2.4	2.6
Total	$ 8.4	$ 8.8	$ 7.4