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Financial Instruments and Fair Value Measurements - Schedule of Fair Value of Derivative Instruments (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended |
|---|---|---|
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Mar. 31, 2013
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Dec. 31, 2014
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| Derivatives, Fair Value [Line Items] | ||
| Loss related to interest rate swap reclassified from accumulated other comprehensive loss | $ 7.8 | |
| Foreign Currency Options - Euro Denominated [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Gains on foreign exchange transactions | $ 7.7 |