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Derivatives - Schedule of Unsettled Purchased Foreign Currency Forward Contracts (Details) - Foreign currency forward contracts [Member] € in Thousands, ₨ in Thousands, £ in Thousands, PLN in Thousands, AUD in Thousands, $ in Thousands	Jun. 30, 2015 PLN	Jun. 30, 2015 AUD	Jun. 30, 2015 INR (₨)	Jun. 30, 2015 USD ($)	Jun. 30, 2015 GBP (£)	Jun. 30, 2015 EUR (€)	Dec. 31, 2014 PLN	Dec. 31, 2014 AUD	Dec. 31, 2014 INR (₨)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 GBP (£)	Dec. 31, 2014 EUR (€)
Australian Dollar [Member] | Short [Member]
Derivative [Line Items]
Derivative notional amount		AUD 6,270		$ 4,970				AUD 6,750		$ 5,838
Average contract rate	0.7927	0.7927	0.7927	0.7927	0.7927	0.7927	0.8649	0.8649	0.8649	0.8649	0.8649	0.8649
Australian Dollar [Member] | Long [Member]
Derivative [Line Items]
Derivative notional amount		AUD 2,740		$ 2,103
Average contract rate	0.7675	0.7675	0.7675	0.7675	0.7675	0.7675
Euro [Member] | Long [Member]
Derivative [Line Items]
Derivative notional amount				$ 17,375		€ 14,000				$ 38,777		€ 30,200
Average contract rate	1.2411	1.2411	1.2411	1.2411	1.2411	1.2411	1.2840	1.2840	1.2840	1.2840	1.2840	1.2840
British Pound Sterling [Member] | Long [Member]
Derivative [Line Items]
Derivative notional amount				$ 31,659	£ 20,300					$ 37,343	£ 22,950
Average contract rate	1.5596	1.5596	1.5596	1.5596	1.5596	1.5596	1.6271	1.6271	1.6271	1.6271	1.6271	1.6271
Indian Rupee [Member] | Long [Member]
Derivative [Line Items]
Derivative notional amount			₨ 1,225,000	$ 18,671					₨ 1,205,000	$ 18,748
Average contract rate	0.0152	0.0152	0.0152	0.0152	0.0152	0.0152	0.0156	0.0156	0.0156	0.0156	0.0156	0.0156
Polish Zloty [Member] | Long [Member]
Derivative [Line Items]
Derivative notional amount	PLN 186,000			$ 51,611			PLN 171,000			$ 52,821
Average contract rate	0.2775	0.2775	0.2775	0.2775	0.2775	0.2775	0.3089	0.3089	0.3089	0.3089	0.3089	0.3089

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Article 12



-Section 13



-Sentence Column B

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- Definition

Average contractual rate at which a foreign currency can be purchased or sold.

+ References

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- Definition

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+ References

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