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Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Effective tax rate	13.00%	29.00%			14.00%	23.00%
Expected tax rate	14.00%		15.00%	17.00%	14.00%	23.00%
US Statutory rate					35.00%
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 Tax Authority [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

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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-Publisher FASB

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Expected Annualized Tax Rate

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Foreign NOL carryforwards.

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Other foreign deductible carry forwards.

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Other Tax Credit Carryforward Expiration Dates

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