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Stock-Based Compensation - Option Activity (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
shares
Number of Stock Options  
Beginning balance (in shares) | shares 380,143
Granted (in shares) | shares 0
Exercised (in shares) | shares (48,769)
Expired (in shares) | shares (3,634)
Forfeited (in shares) | shares (9,961)
Ending balance (in shares) | shares 317,779
Exercisable at end of period (in shares) | shares 258,174
Weighted- Average Exercise Price Per Share  
Beginning balance (in dollars per share) | $ / shares $ 35.46
Granted (in dollars per share) | $ / shares 0
Exercised (in dollars per share) | $ / shares 35.53
Expired (in dollars per share) | $ / shares 36.49
Forfeited (in dollars per share) | $ / shares 39.72
Ending balance (in dollars per share) | $ / shares 35.30
Exercisable at end of period (in dollars per share) | $ / shares $ 33.75
Weighted-Average Remaining Contractual Life (Years)  
Outstanding 5 years 8 months 12 days
Exercisable 5 years 3 months 18 days
Aggregate Intrinsic Value  
Outstanding | $ $ 3,460
Exercisable | $ $ 3,211