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Equity-Based Compensation - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate intrinsic value of options exercised $ 20,000 $ 13,000 $ 22,000
Unrecognized compensation cost related to nonvested stock options 0    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to nonvested stock awards $ 54,000    
Unrecognized compensation cost expected to be recognized over a weighted average period 6 months 22 days    
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to nonvested stock awards $ 0    
2012 Plan | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for potential grants 600,000    
Option granted, maximum exercise period 10 years    
Vesting period 4 years    
2012 Plan | Stock Options | For the first four anniversaries of the grant date      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of stock award vesting 25.00%