DESCRIPTION Of BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 1,711.7	$ 1,052.7	$ 540.6
Translation Adjustments	(127.7)	152.3	(6.9)
Unrealized gains (losses), cash flow hedge	3.2	(1.6)	(2.5)
Unrealized gains (losses), net investment and cash flow hedge	55.7	(43.3)	6.6
Ending Balance	1,790.5	1,711.7	1,052.7
Cumulative Translation Adjustment and Related Hedging Instruments
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	26.6	(84.0)	(86.2)
Translation Adjustments	(127.7)	152.3	(6.9)
Unrealized gains (losses), net investment hedging	52.5	(41.7)	9.1
Ending Balance	(48.6)	26.6	(84.0)
Pension and other post-retirement benefits
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	5.2	5.2	5.2
Ending Balance	5.2	5.2	5.2
Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(5.4)	(3.8)	(1.3)
Unrealized gains (losses), cash flow hedge	3.2	(1.6)	(2.5)
Ending Balance	(2.2)	(5.4)	(3.8)
Total
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	26.4	(82.6)	(82.3)
Ending Balance	$ (45.6)	$ 26.4	$ (82.6)