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Earnings Per Share
 3 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The numerator used in the calculation of both basic and diluted earnings per common share is net income. The denominator used in the calculation of basic earnings per common share is the weighted average number of common shares outstanding during the period. The denominator used in the calculation of diluted earnings per common share is derived by adjusting basic shares outstanding for the dilutive effect of potential common shares outstanding, which consist of time and performance based stock awards and employee stock purchase plan shares.
The following includes the computation of the denominator for basic and diluted weighted-average shares outstanding for the three months ended March 31, 2023 and 2022:
Three Months Ended March 31,
(in thousands)20232022
Weighted Average Common Shares Outstanding – Basic41,632 41,548 
Effect of Dilutive Securities:
Stock Performance Awards241 219 
Restricted Stock Awards102 102 
Employee Stock Purchase Plan Shares and Other2 2 
Dilutive Effect of Potential Common Shares345 323 
Weighted Average Common Shares Outstanding – Diluted41,977 41,871 
The number of shares excluded from diluted weighted-average common shares outstanding because such shares were anti-dilutive was not material for the three months ended March 31, 2023 and 2022.