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Income Taxes - Schedule of Net Operating Losses for Tax Purposes - Non-U.S. (Detail) - European and Canadian Subsidiaries [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Operating Loss Carryforwards [Line Items] |  |  |
Balance-Beginning of year (pre-tax) | $ 10,746 | $ 4,061 |
Foreign subsidiaries tax losses | 12,960 | 6,685 | $ 4,061
Balance - End of year (pre-tax) | $ 23,706 | $ 10,746 | $ 4,061
Tax Rate - Blended | 19.20% | 19.10% | 20.10%
Balance - End of year (tax effected) | $ 4,551 | $ 2,051 | $ 816

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