FINANCIAL INSTRUMENTS - Effects of Derivative Financial Instruments, Other Comprehensive Income (Loss) and Net Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Revaluation of derivative financial instruments, net of reclassifications into earnings, tax expense (benefit)	$ (1.4)	$ 0.5	$ (1.0)
Interest rate swap | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income	2.3	0.8	(1.6)
Interest rate swap | Designated as Hedging Instrument [Member] | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in net income	(3.7)	(4.3)	(2.6)
Interest rate swap | Derivatives not designated as hedging instruments | Miscellaneous, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in net income	0.1	0.7	0.0
Foreign exchange contracts | Derivatives not designated as hedging instruments | Foreign currency gain (loss), net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in net income	$ (4.1)	$ 2.1	$ 3.8