DERIVATIVES AND HEDGING (Details) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
		Feb. 29, 2020 USD ($) contract	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Derivative [Line Items]
Gain on foreign currency translation adjustments recognized in AOCI	[1]		$ 34.4	$ 3.4	$ (184.3)	$ 11.3
Number of derivative instruments held | contract		2
Unrealized loss on foreign currency adjustments			$ 9.2
Cross Currency Swap Contract
Derivative [Line Items]
Notional amount		$ 400.0
Gain on foreign currency translation adjustments recognized in AOCI		11.8
Unrealized loss on foreign currency adjustments					$ 10.7
Euro Cross Currency Swap 1
Derivative [Line Items]
Notional amount		500.0
Euro Cross Currency Swap 2
Derivative [Line Items]
Notional amount		$ 244.0

[1] The three months ended June 30, 2020 includes unrealized losses of $(9.3) million, net of taxes of $2.9 million, related to the net investment hedges. The six months ended June 30, 2020 includes unrealized losses of $(0.1) million related to the net investment hedges. See Note 12 for additional information.