DERIVATIVES (INCOME STATEMENT CLASSIFICATION) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in other comprehensive income - effective portion, net of tax:	$ 4,178	$ 7,234
Amount and location of net gain or (loss) reclassified from accumulated OCI to income - effective portion: Revenue	3,460	(43)
Designated as Hedging Instruments [Member] | Interest Rate [Member] | Cash Flow [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in other comprehensive income - effective portion, net of tax:	(79)	(163)
Amount and location of net gain or (loss) reclassified from accumulated OCI to income - effective portion: Interest expense	(257)
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member] | Other income (expense), net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in other comprehensive income - effective portion, net of tax:	1,438	2,169
Not Designated as Hedging Instruments [Member] | Leases Derivative Contract [Member] | Embedded Derivative [Member] | Cost of Services [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in other comprehensive income - effective portion, net of tax:	$ (69)