FINANCIAL INSTRUMENTS - Fair Value of Derivative Financial Instruments in Consolidated Balance Sheet (Details) - Derivatives not designated as hedging instruments $ in Millions	Dec. 31, 2017 USD ($)
Foreign exchange contracts | Prepaid expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative asset	$ 0.6
Foreign exchange contracts | Accrued expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative liabilities	1.9
Interest rate swap | Prepaid expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative asset	0.0
Interest rate swap | Accrued expenses and other
Derivative Instruments [Abstract]
Fair value of gross derivative liabilities	$ 0.9