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Income Taxes - Schedule of Provision for (Benefit from) Income Taxes on Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
U.S.
Current	$ 2,465us-gaap_CurrentFederalTaxExpenseBenefit	$ 16,982us-gaap_CurrentFederalTaxExpenseBenefit	$ 26,273us-gaap_CurrentFederalTaxExpenseBenefit
Deferred	4,013us-gaap_DeferredFederalIncomeTaxExpenseBenefit	2,675us-gaap_DeferredFederalIncomeTaxExpenseBenefit	(13,241)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Total U.S	6,478us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations	19,657us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations	13,032us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
Non-U.S.
Current	2,308us-gaap_CurrentForeignTaxExpenseBenefit	3,191us-gaap_CurrentForeignTaxExpenseBenefit	2,111us-gaap_CurrentForeignTaxExpenseBenefit
Deferred	(1,184)us-gaap_DeferredForeignIncomeTaxExpenseBenefit	1,096us-gaap_DeferredForeignIncomeTaxExpenseBenefit	(700)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total Non U.S	1,124us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations	4,287us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations	1,411us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations
Income tax expense/effective rate	$ 7,602us-gaap_IncomeTaxExpenseBenefit	$ 23,944us-gaap_IncomeTaxExpenseBenefit	$ 14,443us-gaap_IncomeTaxExpenseBenefit	$ (6,028)us-gaap_IncomeTaxExpenseBenefit

X

- Definition

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

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Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current and deferred income tax expense (benefit) attributable to income (loss) from continuing domestic operations within the country of domicile of the entity.

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Amount of current and deferred income tax expense (benefit) attributable to income (loss) from continuing foreign operations not within the country of domicile of the entity.

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

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