DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 2,100,000
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	100,000
Long-term Debt, Excluding Current Maturities	$ 6,359,300,000	$ 6,344,600,000
Debt Instrument, Basis Spread on Variable Rate	2.298%
Fair Value Hedges, Net	$ 4,500,000
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 2,200,000
Minimum percentage of market price to calculated value of zero-coupon subordinated debt at which the entity is subject to contingent cash interest	120.00%
Embedded derivative, fair value	$ 0
Embedded derivative, impact on condensed consolidated statements of operations	0
Cross currency swap maturing 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 300,000,000
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Long-term Debt, Excluding Current Maturities	$ 604,500,000	604,100,000
Senior Long Term Notes Due2020 Member
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	600,000,000
Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure	2,100,000
Fair Value Hedges, Net	4,500,000	$ 4,100,000
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 2,200,000