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Reconciliation Between Income Tax Expenses (Parenthetical) (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($)
Income Tax Disclosure [Abstract] |
One-time benefit due to re-measurement of net deferred tax liabilities | $ (79,834)
Deemed repatriation tax amount | 14,512
Reduction in deferred tax assets with regard to foreign tax credit carryforwards | $ 20,433

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- Definition Tax Cuts and Jobs Act Of 2017 provisional accounting changes in deferred tax assets with regard to foreign tax credit carryforwards. + References No definition available. + Details
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