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Foreign Currency Translation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Feb. 13, 2013	Feb. 12, 2013	Mar. 31, 2014 Venezuelan Subsidiary	Jan. 31, 2014 Venezuelan Subsidiary
Foreign Currency Translation [Line Items]
Foreign currency exchange rate			6.30	4.30	10.7	6.3
Foreign exchange loss	$ 5.8	$ 6.5
Asset, Reporting Currency Denominated, Value					$ 9

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The reporting currency-denominated asset value.

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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.

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