Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Components of Income (Loss) Before Income Taxes (Detail)

v2.4.1.9
Income Taxes - Summary of Components of Income (Loss) Before Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
United States $ 37,547us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ 32,136us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ 52,422us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign 10,990us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 20,651us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 18,555us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Income before income taxes $ 48,537us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments $ 52,787us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments $ 70,977us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments