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Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Effective tax rate	19.00%
Expected tax rate		17.00%
U.S. foreign tax credit			$ 5,058
Foreign loss carryforwards			5,093
Other Foreign Deductible carryforwards			3,898
Expiry Date of other deductible carryforwards			2016-2020
Foreign Subsidiary [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance for deferred tax assets			2,399
2015 [Member]
Operating Loss Carryforwards [Line Items]
Foreign tax credit carryforwards expire amount			944
2023 [Member]
Operating Loss Carryforwards [Line Items]
Foreign tax credit carryforwards expire amount			$ 4,114

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The portion of the deferred tax asset arising from some other tax carryforward for which it is more likely than not that a tax benefit will not be realized.

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