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Equity-Based Compensation - Stock Options Additional Information (Detail) - Stock Options - shares
9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock awards vesting period 4 years  
Stock options outstanding (in shares) 250 250
First anniversary of grant date    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Vesting percentage 25.00%  
Vested ratably each month over the subsequent 36 months    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock awards vesting period 36 months  
Vesting percentage 75.00%