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Weighted Average Shares Outstanding (Tables)
12 Months Ended
Dec. 31, 2022
Earnings per share [abstract]  
Number of Basic Shares Outstanding and Diluted Common Shares, Calculated on a Weighted Average Basis
The number of basic shares outstanding and diluted common shares, calculated on a weighted average basis, is as follows:
December 31,
2022
December 31,
2021
##
Basic shares outstanding110,936,481 111,242,658 
Share options (dilutive effect in 2022 of 281,061 options; 2021 – 848,278 options)
133,295 374,007 
Diluted shares111,069,776 111,616,665