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Earnings per share
12 Months Ended
Dec. 31, 2019
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. Outstanding shares of Common Stock granted to employees that are not yet vested (restricted shares) 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 the restricted shares and restricted units were vested. 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,
 
2019
 
2018
 
2017
 
($000 omitted)
Numerator:
 
 
 
 
 
Net income attributable to Stewart
78,615

 
47,523

 
48,659

 
 
 
 
 
 
Denominator (000):
 
 
 
 
 
Basic average shares outstanding
23,611

 
23,543

 
23,445

Average number of dilutive shares relating to restricted shares and units
142

 
142

 
152

Diluted average shares outstanding
23,753

 
23,685

 
23,597

 
 
 
 
 
 
Basic earnings per share attributable to Stewart
3.33

 
2.02

 
2.08

Diluted earnings per share attributable to Stewart
3.31

 
2.01

 
2.06