PENSION, POST-RETIREMENT AND POST-EMPLOYMENT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net periodic benefit expense:
Net periodic (benefit) cost	$ 1.8	$ 1.5	$ 2.8
Pension and SERP Benefits | Domestic
Net periodic benefit expense:
Service cost	0.0	0.0	0.0
Interest cost on the projected benefit obligation	8.4	8.7	6.3
Expected return on plan assets	(11.3)	(10.7)	(10.1)
Amortization of actuarial net gain	0.0	0.0	0.0
Plan curtailment	0.0	0.0	0.0
Net periodic (benefit) cost	(2.9)	(2.0)	(3.8)
Pension and SERP Benefits | Foreign
Net periodic benefit expense:
Service cost	0.6	0.6	0.8
Interest cost on the projected benefit obligation	0.6	0.7	0.3
Expected return on plan assets	(0.2)	(0.2)	(0.2)
Amortization of actuarial net gain	0.0	(0.1)	(0.1)
Plan curtailment	0.0	(0.4)	0.0
Net periodic (benefit) cost	1.0	0.6	0.8
Post-retirement Medical Benefits | Domestic
Net periodic benefit expense:
Service cost	0.0	0.0
Interest cost on the projected benefit obligation	0.3	0.3	0.2
Amortization of actuarial net gain	(0.2)	(0.4)	0.0
Net periodic (benefit) cost	$ 0.1	$ (0.1)	$ 0.2