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RETIREMENT PLANS AND OTHER BENEFITS - Changes in Plan Assets and Benefit Obligations Recognized in OCI and Asset Allocation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2021
Pension Plan \| Non-U.S. Plans
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income:
Net (gain) loss	$ 4.2	$ 6.4
Amortization of actuarial gain (loss)	(1.7)	(2.5)
Amortization of prior service cost	(0.2)	(0.2)
Disposals	0.0	(17.9)
Settlements	0.0	(0.6)
Foreign exchange effect	1.9	1.6
Total recognized in other comprehensive income	4.2	(13.2)
Accumulated Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	167.3	153.0
Accumulated benefit obligation	165.2	151.1
Fair value of plan assets	$ 139.9	$ 122.1
Investment Strategy [Abstract]
Expected return on plan assets	3.93%	4.40%	4.40%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	87.00%
Pension Plan \| Non-U.S. Plans \| Fixed Income Securities
Investment Strategy [Abstract]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	74.00%	72.00%
Pension Plan \| Non-U.S. Plans \| Equity Funds
Investment Strategy [Abstract]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	26.00%	28.00%
Pension Plan \| U.S. Plan
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income:
Net (gain) loss	$ 4.0	$ 3.4
Amortization of actuarial gain (loss)	0.0	0.6
Amortization of prior service cost	0.0	0.0
Disposals	0.0	0.0
Settlements	0.0	0.0
Foreign exchange effect	0.0	0.0
Total recognized in other comprehensive income	4.0	4.0
Accumulated Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	46.1	43.1
Accumulated benefit obligation	46.1	43.1
Fair value of plan assets	$ 0.0	$ 0.0
Investment Strategy [Abstract]
Expected return on plan assets	0.00%	0.00%	0.00%
Other Benefits
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income:
Net (gain) loss	$ (0.2)	$ (0.1)
Amortization of actuarial gain (loss)	0.0	0.0
Amortization of prior service cost	0.0	0.0
Disposals	0.0	0.0
Settlements	0.0	0.0
Foreign exchange effect	0.0	0.0
Total recognized in other comprehensive income	$ (0.2)	$ (0.1)
Scenario, Forecast \| Pension Plan \| Non-U.S. Plans \| Minimum \| Equity Securities
Investment Strategy [Abstract]
Target plan asset allocations				25.00%
Scenario, Forecast \| Pension Plan \| Non-U.S. Plans \| Minimum \| Fixed Income Securities
Investment Strategy [Abstract]
Target plan asset allocations				74.00%
Scenario, Forecast \| Pension Plan \| Non-U.S. Plans \| Maximum \| Equity Securities
Investment Strategy [Abstract]
Target plan asset allocations				26.00%
Scenario, Forecast \| Pension Plan \| Non-U.S. Plans \| Maximum \| Fixed Income Securities
Investment Strategy [Abstract]
Target plan asset allocations				75.00%