Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Additional Information (Details)

v3.21.2
Stock Based Compensation - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares authorized (in shares) 8,000,000.0  
Shares available for grant (in shares) 6,300,000 6,600,000
Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense $ 0.1  
Unrecognized compensation expense, recognition period 1 year 8 months 12 days  
Restricted stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense $ 5.4  
Unrecognized compensation expense, recognition period 2 years 3 months 18 days