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Equity-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation expense $ 1,446 $ 1,639  
Cash paid for minimum tax withholdings $ (43) (3,048)  
Options, Grants in Period, Gross 278,832    
Options, Grants in Period, Weighted Average Grant Date Fair Value $ 14.42    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested Shares Settled 3,000    
Performance shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation expense $ 616 879  
Shares issued (in shares) 1,892    
Restricted stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation expense $ 293 411  
Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation expense 537 349  
Director [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost 700    
Share Based Compensation Arrangement By Share Based Payment Award Compensation Cost Reversal   $ 500  
Deferred Compensation Share-based Arrangements, Liability, Classified, Noncurrent 7,800   $ 9,400
Deferred Compensation Cash-based Arrangements, Liability, Classified, Noncurrent $ 2,400