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Financial Instruments and Fair Value Measurements - Schedule of Fair Value of Derivative Instruments (Parenthetical) (Detail) (Foreign Currency Options - Euro Denominated [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended |
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Sep. 30, 2014
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Sep. 30, 2014
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Foreign Currency Options - Euro Denominated [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Gains on foreign exchange transactions | $ 1.1 | $ 1.1 |