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Shareholders' Equity (Stock Option Activity) (Details) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Stockholders' Equity Note [Abstract]      
Options, beginning balance 590,047 465,247 365,495
Options, granted 133,925 148,426 141,928
Options, exercised (132,702) (12,357) (5,500)
Options, forfeited (11,749) (11,269) (36,676)
Options, ending balance 579,521 590,047 465,247
Options, exercisable 315,253    
Weighted average exercise price, granted $ 41.84 $ 32.54 $ 33.83
Weighted average exercise price, exercised 34.01 22.38 28.09
Weighted average exercise price, forfeited 35.79 33.93 35.88
Weighted average grant date fair value, granted 16.62 14.82 13.35
Weighted average grant date fair value, exercised 12.85 8.63 10.03
Weighted average grant date fair value, forfeited $ 15.39 $ 14.56 $ 13.50