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Stock-Based Compensation (Schedule of Outstanding Restricted Stock) (Details) - Long-Term Restricted Stock Awards
 9 Months Ended
Sep. 30, 2023
$ / shares
shares
Number of Units  
Nonvested, beginning (in shares) | shares 223,012
Granted during the period (in shares) | shares 143,380
Vested during the period (in shares) | shares (25,811)
Forfeited or expired during the period (in shares) | shares (791)
Nonvested, ending (in shares) | shares 339,790
Weighted-Average Grant-Date Fair Value  
Nonvested, beginning (in dollars per share) | $ / shares $ 36.14
Granted during the period (in dollars per share) | $ / shares 37.08
Vested during the period (in dollars per share) | $ / shares 24.52
Forfeited or expired during the period (in dollars per share) | $ / shares 37.88
Nonvested, ending (in dollars per share) | $ / shares $ 37.15