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Earnings Per Share | 12 Months Ended
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Dec. 31, 2024
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share We present two calculations of earnings per common share. “Basic” earnings per common share equals net earnings attributable to SMP divided by weighted average common shares outstanding during the period. “Diluted” earnings per common share equals net earnings attributable to SMP divided by the sum of weighted average common shares outstanding during the period plus potentially dilutive common shares. Potentially dilutive common shares that are anti-dilutive are excluded from net earnings per common share. The following are reconciliations of the net earnings attributable to SMP and the shares used in calculating basic and dilutive net earnings per common share attributable to SMP (in thousands, except share and per share data):
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
Net earnings (loss) attributable to SMP |  |  |  |  |
Continuing operations | 53,628 |  |  | 63,144 |  |  | 73,042 |
Discontinued operations | (26,128) |  |  | (28,996) |  |  | (17,691) |
Net earnings attributable to SMP | $ | 27,500 |  |  | $ | 34,148 |  |  | $ | 55,351 |
Basic net earnings (loss) per common share attributable to SMP |  |  |  |  |
Continuing operations | $ | 2.46 |  |  | $ | 2.91 |  |  | $ | 3.37 |
Discontinued operations | $ | (1.20) |  |  | $ | (1.34) |  |  | $ | (0.82) |
Diluted net earnings (loss) per common share attributable to SMP |  |  |  |  |
Continuing operations | $ | 2.41 |  |  | $ | 2.85 |  |  | $ | 3.30 |
Discontinued operations | $ | (1.17) |  |  | $ | (1.31) |  |  | $ | (0.80) |
Weighted average number of common shares, basic | 21,801,141 |  | 21,716,177 |  | 21,683,719
Dilutive effect of restricted stock and performance-based stock | 435,919 |  |  | 445,164 |  |  | 456,262 |
Weighted average number of common shares, diluted | 22,237,060 |  | 22,161,341 |  | 22,139,981
The shares listed below were not included in the computation of diluted net earnings per common share attributable to SMP because to do so would have been anti-dilutive for the periods presented or because they were excluded under the treasury method (in thousands):
| 2024 |  | 2023 |  | 2022
Restricted and performance shares | 285 |  | 280 |  | 292

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