DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Balance Sheet Location (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Aug. 31, 2015	Aug. 01, 2015	Dec. 31, 2014	Dec. 01, 2014
Derivatives, Fair Value [Line Items]
Notional Amount				$ 309,000		$ 22,000
Fair value, derivative asset	[1]	$ 8,044			$ 688
Fair value, derivative liability	[1]	(32,826)			(9,377)
Prepaid and other current assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	7,826			431
Other assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	218			257
Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(8,455)			(1,934)
Other non-current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(24,371)			(7,443)
Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount			$ 170,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		25,840			28,540
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member] | Prepaid and other current assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	24			132
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	0			59
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(2,677)			(272)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member] | Other non-current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(1,087)			0
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency option contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		129,100			79,400
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency option contracts [Member] | Prepaid and other current assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	127			299
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency option contracts [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	218			198
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency option contracts [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(4,222)			(1,439)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign currency option contracts [Member] | Other non-current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(907)			(196)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		350,000			0
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest rate swaps [Member] | Other non-current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(13,644)			0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		22,320			27,419
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency exchange contracts [Member] | Prepaid and other current assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	4,035			0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency exchange contracts [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	0			(223)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency option contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		308,647			0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency option contracts [Member] | Prepaid and other current assets [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	[1]	3,640			0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign currency option contracts [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	(1,556)			0
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		121,163			161,968
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Other non-current liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	[1]	$ (8,733)			$ (7,247)

[1] See Note 10 — Fair Value Measurements for further information on the fair value of the Company’s derivatives including their classification within the fair value hierarchy.