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Stock-based Compensation - RSAs & Performance-Based RSUs (Details)
6 Months Ended
Jun. 30, 2022
$ / shares
shares
RSAs  
Number of shares  
Beginning balance (in shares) | shares 62,691
Granted (in shares) | shares 42,057
Vested (in shares) | shares (43,219)
Ending balance (in shares) | shares 61,529
Weighted average price at grant  
Beginning balance (in dollars per share) | $ / shares $ 53.49
Granted (in dollars per share) | $ / shares 56.42
Vested (in dollars per share) | $ / shares 53.63
Ending balance (in dollars per share) | $ / shares $ 55.40
RSUs  
Number of shares  
Beginning balance (in shares) | shares 90,942
Granted (in shares) | shares 35,911
Performance criteria adjustment (in shares) | shares 12,173
Vested (in shares) | shares (32,913)
Forfeited (in shares) | shares (5,733)
Ending balance (in shares) | shares 100,380
Weighted average price at grant  
Beginning balance (in dollars per share) | $ / shares $ 52.71
Granted (in dollars per share) | $ / shares 56.42
Performance criteria adjustment (in dollars per share) | $ / shares 58.63
Vested (in dollars per share) | $ / shares 58.63
Forfeited (in dollars per share) | $ / shares 52.83
Ending balance (in dollars per share) | $ / shares $ 54.01