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Employee Benefit Plans - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Employee Benefit Plan [Abstract]      
Matching contributions amount $ 0.6    
Total contributions to multi-employer plans $ 0.8 $ 1.0 $ 0.6
Maximum Contribution of total contributions for multi-employer pension plans 5.00%    
Withdrawal liability from pension fund   $ 0.4