FAIR VALUE MEASUREMENTS (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Cost Method Investments	$ 600,000		$ 600,000		$ 62,300,000
Derivatives Not Designated as Hedging Instruments
Foreign exchange gains (losses), net of derivative activity	(2,600,000)	$ (200,000)	(7,000,000)	$ (6,300,000)
Derivatives Designated as Hedging Instruments
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value, Net	0		0		0
Net cash inflow from foreign currency contracts			0	453,818,000
Foreign Exchange Contracts, Translation Risk [Member]
Derivatives Not Designated as Hedging Instruments
Foreign currency derivative instruments not designated as hedging instruments at fair value, net	0		0		0
Foreign exchange gains (losses) recorded in Foreign currency transactions and other	3,900,000	(1,700,000)	300,000	200,000
Foreign Exchange Contracts, Transaction Risk [Member]
Derivatives Not Designated as Hedging Instruments
Foreign currency derivative instruments not designated as hedging instruments at fair value, net	400,000		400,000		(300,000)
Foreign exchange gains (losses) recorded in Foreign currency transactions and other	3,600,000	$ 6,000,000	16,000,000	(26,000,000)
Foreign exchange derivative assets recorded in Prepaid expenses and other current assets	800,000		800,000		400,000
Foreign exchange derivative liabilities recorded in Accrued expenses and other current liabilities	$ 400,000		400,000		$ 700,000
Foreign Currency Contracts [Member]
Derivatives Not Designated as Hedging Instruments
Net cash inflow from settlement of derivative contracts included in operating activities			$ 23,600,000
Net cash outflow from settlement of derivative contracts included in operating activities				27,700,000
Foreign Currency Contracts [Member] | Net Investment Hedging [Member]
Derivatives Designated as Hedging Instruments
Net cash inflow from foreign currency contracts				$ 5,200,000