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Share-Based Compensation - Summary of Unvested Restricted Stock Awards (Details) - Restricted Stock
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Shares [Roll Forward]  
Unvested, beginning of period (in shares) | shares 224,691
Granted (in shares) | shares 32,600
Vested (in shares) | shares (89,523)
Forfeited (in shares) | shares (7,051)
Unvested, end of period (in shares) | shares 160,717
Weighted Average Grant Date Fair Value [Roll Forward]  
Unvested, beginning of period (weighted average grant date fair value) | $ / shares $ 38.22
Granted (weighted average grant date fair value) | $ / shares 69.12
Vested (weighted average grant date fair value) | $ / shares 35.85
Forfeited (weighted average grant date fair value) | $ / shares 49.81
Unvested, end of period (weighted average grant date fair value) | $ / shares $ 45.29