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Net Income Per Common Share
 3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
Net Income Per Common Share Net Income Per Common Share
Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share is computed by dividing net income by the combination of the weighted average number of common shares outstanding during the period and other potentially dilutive weighted average common shares. Other potentially dilutive weighted average common shares include the dilutive effect of restricted stock units and performance stock units for each period using the treasury stock method. Under the treasury stock method, the exercise price of a share and the amount of compensation expense, if any, for future service that has not yet been recognized are assumed to be used to repurchase shares in the current period.

The following table sets forth the computation of basic and diluted net income per common share:
 Three Months Ended
March 31
 20252024
 (thousands, except per-share data)
Net income$40,348 $104,124 
Weighted average common shares outstanding during the period (for basic calculation)38,017 39,608 
Dilutive effect of other potential common shares198 348 
Weighted average common shares and potential common shares (for diluted calculation)38,215 39,956 
Net income per common share - Basic$1.06 $2.63 
Net income per common share - Diluted$1.06 $2.61 
The computation of the dilutive effect of other potential common shares excludes stock awards representing an insignificant number of shares of common stock in both the three months ended March 31, 2025 and 2024. Under the treasury stock method, the inclusion of these stock awards would have been antidilutive.