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Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified |  |  | 6 Months Ended
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Jun. 30, 2014 Derivative | Dec. 31, 2013 Derivative | Jun. 30, 2014 Minimum [Member] Foreign Currency Forward Contracts [Member] | Jun. 30, 2014 Maximum [Member] Foreign Currency Forward Contracts [Member]
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Maturity period of foreign currency forward contracts |  |  | 12 months | 18 months
Notional amount of outstanding interest rate swaps | $ 100 | $ 100 |  |
Number of foreign exchange options outstanding | 0 | 0 |  |
Number of interest rate and currency swap agreements outstanding | 0 | 0 |  |

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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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- Definition Maturity of Foreign Currency Derivative + References No definition available. + Details
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- Definition Number of foreign exchange options outstanding. + References No definition available. + Details
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- Definition Number of interest rate and Currency swap agreements outstanding. + References No definition available. + Details
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- Details
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