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Share-Based Compensation - Activity in stock (Details) - Restricted Stock Awards and Units. - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Restricted Stock Awards and Units    
Outstanding at beginning of period 231,657 238,929
Granted 60,976 82,810
Vested (38,149) (91,867)
Forfeited or cancelled   (22,204)
Outstanding at end of period 254,484 207,668
Weighted Average Grant Date Fair Value    
Outstanding at beginning of period $ 22.96 $ 23.66
Granted 21.83 20.85
Vested 26.05 21.29
Forfeited or cancelled   21.39
Outstanding at end of period $ 22.18 $ 23.83
Additional disclosures    
Unrecognized compensation cost $ 3.6  
Weighted average period 2 years 4 months 24 days