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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
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