PENSION, POST-RETIREMENT AND POST-EMPLOYMENT PLANS - Changes in Funded Status of Pension and SERP Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in Plan Assets:
Beginning of period balance	$ 163.6
End of period balance	173.4	$ 163.6
Pension and SERP Benefits | Domestic
Change in Projected Benefit Obligation:
Beginning of period balance	175.2	227.3
Service cost	0.0	0.0	$ 0.0
Interest cost	8.7	6.3	5.9
Plan curtailment	0.0	0.0
Actuarial loss (gain) due to assumption change	3.0	(47.5)
Actuarial loss (gain) due to plan experience	1.3	0.9
Benefits and expenses paid	(11.6)	(11.8)
Settlement	0.0	0.0
Foreign currency translation	0.0	0.0
End of period balance	176.6	175.2	227.3
Change in Plan Assets:
Beginning of period balance	158.7	219.2
Actual return on plan assets, net of expenses	20.8	(49.1)
Employer contributions	0.5	0.4
Benefits paid	(11.6)	(11.8)
Settlement	0.0	0.0
Foreign currency translation	0.0	0.0
End of period balance	168.4	158.7	219.2
Funded Status
Funded status of plan	(8.2)	(16.5)
Supplemental Information:
Accumulated benefit obligation	176.6	175.2
Plans with Accumulated Benefit Obligation in excess of Plan Assets:
Accumulated benefit obligation	176.6	175.2
Fair value plan assets	168.4	158.7
Plans with Projected Benefit Obligation in excess of Plan Assets:
Projected benefit obligation	176.6	175.2
Fair value plan assets	168.4	158.7
Pension and SERP Benefits | Foreign
Change in Projected Benefit Obligation:
Beginning of period balance	19.4	25.5
Service cost	0.6	0.8	0.7
Interest cost	0.7	0.3	0.2
Plan curtailment	(0.4)	0.0
Actuarial loss (gain) due to assumption change	0.8	(4.0)
Actuarial loss (gain) due to plan experience	0.2	(0.4)
Benefits and expenses paid	(0.8)	(0.7)
Settlement	(1.0)	(0.4)
Foreign currency translation	0.3	(1.7)
End of period balance	19.8	19.4	25.5
Change in Plan Assets:
Beginning of period balance	4.9	4.5
Actual return on plan assets, net of expenses	0.1	0.0
Employer contributions	1.7	1.8
Benefits paid	(0.8)	(0.7)
Settlement	(1.0)	(0.4)
Foreign currency translation	0.1	(0.3)
End of period balance	5.0	4.9	4.5
Funded Status
Funded status of plan	(14.8)	(14.5)
Supplemental Information:
Accumulated benefit obligation	17.4	17.2
Plans with Accumulated Benefit Obligation in excess of Plan Assets:
Accumulated benefit obligation	15.5	15.3
Fair value plan assets	2.5	2.5
Plans with Projected Benefit Obligation in excess of Plan Assets:
Projected benefit obligation	19.6	19.0
Fair value plan assets	4.6	4.3
Post-retirement Medical Benefits | Domestic
Change in Projected Benefit Obligation:
Beginning of period balance	5.9	7.7
Service cost	0.0	0.0
Interest cost	0.3	0.2	0.2
Plan curtailment	0.0	0.0
Actuarial loss (gain) due to assumption change	0.1	(1.5)
Actuarial loss (gain) due to plan experience	(0.5)	(0.1)
Benefits and expenses paid	(0.4)	(0.4)
Settlement	0.0	0.0
Foreign currency translation	0.0	0.0
End of period balance	5.4	5.9	7.7
Change in Plan Assets:
Beginning of period balance	0.0	0.0
Actual return on plan assets, net of expenses	0.0	0.0
Employer contributions	0.4	0.4
Benefits paid	(0.4)	(0.4)
Settlement	0.0	0.0
Foreign currency translation	0.0	0.0
End of period balance	0.0	0.0	$ 0.0
Funded Status
Funded status of plan	(5.4)	(5.9)
Supplemental Information:
Accumulated benefit obligation	5.4	5.9
Plans with Accumulated Benefit Obligation in excess of Plan Assets:
Accumulated benefit obligation	5.4	5.9
Fair value plan assets	0.0	0.0
Plans with Projected Benefit Obligation in excess of Plan Assets:
Projected benefit obligation	5.4	5.9
Fair value plan assets	$ 0.0	$ 0.0