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Earnings per share
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Earnings per share
Earnings per share. Basic earnings per share (EPS) attributable to Stewart is calculated by dividing net income attributable to Stewart by the weighted-average number of shares of Common Stock outstanding during the reporting periods. Any outstanding shares of Common Stock granted to employees that are not yet vested are excluded from the calculation of the weighted-average number of shares outstanding for calculating basic EPS. To calculate diluted EPS, the number of shares is adjusted to include the number of additional shares that would have been outstanding if restricted units and shares were vested and stock options were exercised. In periods of loss, dilutive shares are excluded from the calculation of the diluted EPS and diluted EPS is computed in the same manner as basic EPS.

The calculation of the basic and diluted EPS is as follows:
 For the Years Ended December 31,
 202320222021
Numerator (in $ thousands):
Net income attributable to Stewart30,439 162,305 323,216 
Denominator (in thousands):
Basic average shares outstanding27,293 27,055 26,822 
Average number of dilutive shares relating to options69 159 197 
Average number of dilutive shares relating to restricted units and shares158 133 149 
Diluted average shares outstanding27,520 27,347 27,168 
Basic earnings per share attributable to Stewart ($)1.12 6.00 12.05 
Diluted earnings per share attributable to Stewart ($)1.11 5.94 11.90