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Net Income Per Share | 3 Months Ended
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Mar. 31, 2024
Earnings Per Share [Abstract] |
Net Income Per Share | 11. Net Income Per Share Basic net income per share is computed by dividing distributed and undistributed net income allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes non-vested share-based payment awards. Basic and diluted net income per share was calculated under the two-class method for the quarter ended March 31, 2024 and the treasury method for the quarter ended March 31, 2023, which was more dilutive than the two-class method. The following table sets forth the computation of basic and diluted net income per share (in millions of dollars, except share and per share amounts):
|  | Quarter Ended March 31, |
|  | 2024 |  |  | 2023 |
Numerator: |  |  |  |  |  |
Net income available to common shareholders 1 |  | $ | 24.6 |  |  | $ | 15.9 |
Denominator – Weighted-average common shares outstanding (in thousands): |  |  |  |  |  |
Basic |  |  | 16,027 |  |  |  | 15,940 |
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares 2 |  |  | 203 |  |  |  | 156 |
Diluted |  |  | 16,230 |  |  |  | 16,096 |
Net income per common share, Basic: |  | $ | 1.53 |  |  | $ | 1.00 |
Net income per common share, Diluted: |  | $ | 1.51 |  |  | $ | 0.99 |
1. Represents Net income less distributed and undistributed earnings allocated to non-vested RSAs that contain non-forfeitable rights to dividends. 2. Quantities in the following discussion are denoted in whole shares. During the quarters ended March 31, 2024 and March 31, 2023, approximately 2,200 and 11,000 shares, respectively, were excluded from the weighted-average diluted shares computation as their inclusion would have been anti‑dilutive.

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