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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Millions
4 Months Ended
Apr. 18, 2020
May 20, 2020
2020 Plan [Member] | Subsequent Event [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares unissued   1,635,000
2015 Plan [Member] | Subsequent Event [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares available for Grant under the Plan   734,341
Restricted Stock Awards [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Unrecognized compensation cost $ 5.9  
Unrecognized compensation cost, weighted average period of recognition 2 years 8 months 12 days