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Share-based payment arrangements (Tables)
12 Months Ended
Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [abstract]  
Share-based payments expense
Share-based payments expense consists of:
December 31, 2023December 31, 2022
Share options$2,717 $4,376 
Restricted share units with no performance criteria1,789 1,620 
Restricted share units with performance criteria480 2,545 
Deferred units2,446 144 
Performance share units2,763 2,059 
$10,195 $10,744 
Summary of movements in number of share options outstanding and weighted average exercise prices
Movements in the number of share options outstanding and their related weighted average exercise prices are as follows:
20232022
Weighted
average price CDN$
Number of
options
Weighted
average price CDN$
Number of
options
At January 1,$11.313,739,567 $11.314,250,763 
Granted14.741,054,431 13.921,265,672 
Exercised10.11(987,649)6.42(885,750)
Expired12.76(127,132)21.98(667,980)
Forfeited14.06(326,474)13.67(223,138)
At December 31,$12.423,352,743 $11.313,739,567 
Summary of range of exercise prices of outstanding share options Options outstanding are as follows:
December 31, 2023December 31, 2023
Total options outstandingExercisable options
Range of 
exercise 
price 
CDN$
SharesWeighted
average
remaining
contractual
life (years)
Weighted
average
exercise
price
CDN$
SharesWeighted 
average 
exercise 
price 
CDN$
$5.00 to $5.99
614,951 0.16$5.68614,951 $5.68
$11.00 to $11.99
69,501 4.6311.90 — — 
$12.00 to $12.99
419,227 1.8412.90 338,968 12.90 
$13.00 to $13.99
1,432,507 2.7913.64 574,863 13.52 
$14.00 to $14.99
16,766 2.2314.60 11,178 14.60 
$15.00 to $15.99
799,791 4.34 15.17 — — 
3,352,743 2.59 $12.421,539,960 $10.26

Summary of assumptions used to estimate the fair value of options granted
The assumptions used to estimate the fair value of options granted during the years ended December 31, 2023 and December 31, 2022 are in the table below. Volatility was determined based on the historical volatility over the estimated lives of the options.
2023 2022 
Risk-free interest rate (range)
3.2% – 4.8%
1.4% – 1.6%
Expected volatility (range)
44% – 57%
60% – 61%
Expected life (range) (years)
1.94 – 3.96
1.96 – 3.96
Expected dividends (CDN $)— — 
Disclosure of RSUs with no performance criteria
A summary of the status of the RSUs with no performance criteria and changes during the years ended December 31, 2023 and December 31, 2022 is as follows:
2023 2022 
At January 1,328,677 471,762 
Granted383,427 176,414 
Redeemed(145,598)(294,993)
Forfeited(85,681)(24,506)
At December 31,480,825 328,677 
Movements in the PSUs during the years ended December 31, 2023 and December 31, 2022 are as follows:
20232022
At January 1,342,670 278,020 
Granted421,502 616,920 
Redeemed— (528,166)
Forfeited(74,997)(24,104)
At December 31,689,175 342,670 
Disclosure of RSUs with performance criteria
A summary of the status of the RSUs with performance criteria and changes during the years ended December 31, 2023 and December 31, 2022 is as follows:
2023 2022 
At January 1,566,740 908,377 
Granted222,144 229,979 
Redeemed(444,288)(459,958)
Forfeited(92,653)(111,658)
At December 31,251,943 566,740