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Stock Based Compensation - Share-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 3,055 $ 1,346
Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 780 589
Restricted stock awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 2,275 $ 757