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Income Taxes - Schedule of Provision for Income Taxes from Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current taxes
Federal	$ 3,291us-gaap_CurrentFederalTaxExpenseBenefit	$ 625us-gaap_CurrentFederalTaxExpenseBenefit	$ 8,869us-gaap_CurrentFederalTaxExpenseBenefit
State	238us-gaap_CurrentStateAndLocalTaxExpenseBenefit	(4,365)us-gaap_CurrentStateAndLocalTaxExpenseBenefit	3,386us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign	24,027us-gaap_CurrentForeignTaxExpenseBenefit	17,268us-gaap_CurrentForeignTaxExpenseBenefit	9,516us-gaap_CurrentForeignTaxExpenseBenefit
Total current taxes	27,556us-gaap_CurrentIncomeTaxExpenseBenefit	13,528us-gaap_CurrentIncomeTaxExpenseBenefit	21,771us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred taxes and other
Federal	(3,975)us-gaap_DeferredFederalIncomeTaxExpenseBenefit	(10,973)us-gaap_DeferredFederalIncomeTaxExpenseBenefit	(5,456)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State	(147)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit	(474)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit	(920)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign	(5,297)us-gaap_DeferredForeignIncomeTaxExpenseBenefit	(38)us-gaap_DeferredForeignIncomeTaxExpenseBenefit	4,167us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total deferred taxes and other	(9,419)us-gaap_DeferredIncomeTaxExpenseBenefit	(11,485)us-gaap_DeferredIncomeTaxExpenseBenefit	(2,209)us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax provision	$ 18,137us-gaap_IncomeTaxExpenseBenefit	$ 2,043us-gaap_IncomeTaxExpenseBenefit	$ 19,562us-gaap_IncomeTaxExpenseBenefit

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