PENSION AND POSTRETIREMENT PLANS, OTHER DISCLOSURES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 535,600,000	$ 491,700,000
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	800,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	700,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	700,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	600,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	600,000
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	1,600,000
Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	535,600,000	491,700,000	$ 254,600,000
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	25,900,000	(20,000,000.0)
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	15,400,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	16,400,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	17,300,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	18,700,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	18,400,000
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	102,800,000
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (154,500,000)	(99,100,000)
Non-US | Equity Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	47.20%
Non-US | Debt Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	34.60%
Non-US | Variable Annuity [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	11.30%
Non-US | Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	4.00%
Non-US | Other Investments
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	1.00%
Domestic Plan
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 300,900,000	262,100,000	$ 246,900,000
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0	0
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	26,800,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	27,000,000.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	26,300,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	25,700,000
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	25,400,000
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	116,000,000.0
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (68,900,000)	(93,400,000)
Domestic Plan | Equity Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	50.30%
Domestic Plan | Debt Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	40.40%
Domestic Plan | Variable Annuity [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	0.00%
Domestic Plan | Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	5.00%
Domestic Plan | Other Investments
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Actual Asset Allocation	4.30%
Accrued Liabilities [Member] | Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (600,000)	(500,000)
Accrued Liabilities [Member] | Domestic Plan
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(2,300,000)	(2,200,000)
Other Liabilities [Member] | Non-US
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	153,900,000	98,600,000
Other Liabilities [Member] | Domestic Plan
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Funded (Unfunded) Status of Plan	66,600,000	91,200,000
Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	470,100,000	458,500,000
Fair Value Measured at Net Asset Value Per Share | Domestic Plan
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	287,900,000	257,800,000
Fair Value Measured at Net Asset Value Per Share | Domestic Plan | Real Estate Funds [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 15,000,000.0	$ 12,700,000