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Financial Derivatives and Hedging Activities - Outstanding Derivatives Used to Hedge Foreign Exchange Risks (Detail) In Thousands, unless otherwise specified | Jun. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging [Member] Euro / U.S. Dollar [Member] USD ($) | Dec. 31, 2013 Cash Flow Hedges [Member] Designated as Hedging [Member] Euro / U.S. Dollar [Member] USD ($) | Jun. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging [Member] U.S. Dollar / Canadian Dollar [Member] CAD | Dec. 31, 2013 Cash Flow Hedges [Member] Designated as Hedging [Member] U.S. Dollar / Canadian Dollar [Member] CAD | Jun. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging [Member] Euro / Philippine Peso [Member] PHP | Jun. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging [Member] British Pound / Philippine Peso [Member] PHP | Jun. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging [Member] Euro / British Pound [Member] GBP (£) | Jun. 30, 2014 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / U.S. Dollar [Member] EUR (€) | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / U.S. Dollar [Member] EUR (€) | Jun. 30, 2014 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / British Pound [Member] EUR (€) | Jun. 30, 2014 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / British Pound [Member] GBP (£) | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / British Pound [Member] EUR (€) | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Euro / British Pound [Member] GBP (£) | Jun. 30, 2014 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Canadian Dollar / U.S Dollar [Member] CAD | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] Canadian Dollar / U.S Dollar [Member] CAD | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] U.S Dollar / Euro [Member] USD ($) | Jun. 30, 2014 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] U.S. Dollar / British Pound [Member] USD ($) | Dec. 31, 2013 Foreign Currency Hedges [Member] Not Designated as Hedging [Member] U.S. Dollar / British Pound [Member] USD ($)
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Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sell (Buy) Notional | $ (26,348) | $ (27,105) | (9,449) | (13,007) | (510,705) | (207,955) | £ (3,468) | € 8,000 | € 9,000 | € 4,000 | £ (9,000) | € 5,000 | £ (8,000) | 2,000 | 2,000 | $ 2,000 | $ 7,000 | $ 6,000

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- 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 + Details
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