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Share-Based Compensation - Additional Information (Detail) - 2015 Plan [Member]
$ in Thousands
1 Months Ended 3 Months Ended
Sep. 30, 2015
USD ($)
shares
Sep. 30, 2015
Installments
shares
Dec. 31, 2015
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock based compensation expense $ 0   $ 478
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of annual installments, options exercisable | Installments   5  
Stock based compensation expense     103
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awardees received additional shares for each share held | shares   1  
Stock based compensation expense     $ 375
Maximum [Member] | Stock Compensation Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of common stock granted | shares 1,230,000 1,230,000  
Maximum [Member] | Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation, expiration period   10 years  
Maximum [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation, expiration period   5 years  
Share based compensation, vesting period   5 years  
Minimum [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based compensation, expiration period   1 year  
Share based compensation, vesting period   1 year