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Earnings per Share
6 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
Earnings Per Share Earnings per Share
The following table sets forth the computation of basic and diluted earnings per share. For additional information on the calculation of basic and diluted earnings per share, see Note 1, "Summary of Significant Accounting Policies - Earnings per Share" of the Corporation's Annual Report on Form 10-K for the year ended December 31, 2022.
Three Months EndedSix Months Ended
 June 30,June 30,
(Dollars and shares in thousands, except per share data)2023202220232022
Numerator for basic and diluted earnings per share—net income available to common shareholders
$16,800 $13,166 $37,834 $33,483 
Denominator for basic earnings per share—weighted-average shares outstanding
29,439 29,490 29,376 29,516 
Effect of dilutive securities—employee stock options and restricted stock units65 110 117 153 
Denominator for diluted earnings per share—adjusted weighted-average shares outstanding
29,504 29,600 29,493 29,669 
Basic earnings per share$0.57 $0.45 $1.29 $1.14 
Diluted earnings per share$0.57 $0.45 $1.28 $1.13 
Average antidilutive options and restricted stock units excluded from computation of diluted earnings per share575 400 367 253