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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Nov. 30, 2016
Dec. 31, 2015
May 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized stock based compensation expense $ 5,579   $ 5,579        
Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock shares issued (in shares)     0        
Grant date fair value per share (in dollars per share)     $ 0        
2012 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock shares authorized for issuance (in shares)           880,000 440,000
2012 Equity Incentive Plan | Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock shares issued (in shares)       335,000      
Stock compensation expense recognized $ 943 $ 652 $ 1,968 $ 2,196      
2012 Equity Incentive Plan | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration period     5 years        
Percent of voting power     10.00%        
Shares vest over period     1 year        
2012 Equity Incentive Plan | Minimum | Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Grant date fair value per share (in dollars per share)     $ 2.44        
2012 Equity Incentive Plan | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration period     10 years        
2012 Equity Incentive Plan | Maximum | Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Grant date fair value per share (in dollars per share)     $ 19.00        
Shares vest over period     4 years        
2016 Omnibus Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock shares authorized for issuance (in shares)         3,911,000