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Earnings Per Share
 9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per ShareThe following table sets forth the reconciliation from basic to diluted average common shares and the calculations of net income per common share.  Net income for basic and diluted calculations do not differ.
Three Months Ended
September 30,		Nine Months Ended
September 30,
(In thousands, except per share)
2023202220232022
Net Income$34,915 $25,821 $104,638 $72,763 
Average Common Shares:
Basic (weighted-average outstanding shares)
11,928 11,883 11,916 11,875 
Dilutive potential common shares from stock options
68 58 67 57 
Diluted (weighted-average outstanding shares)
11,996 11,941 11,983 11,932 
Basic earnings per share$2.93 $2.18 $8.78 $6.13 
Diluted earnings per share$2.91 $2.16 $8.73 $6.10