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Share Capital (Tables) | 12 Months Ended
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Dec. 31, 2024
Share Capital, Reserves And Other Equity Interest [Abstract] |
Summary of Outstanding Common Stock |
|  | 2024 |  | 2023
ISSUED COMMON SHARES(1) |  | Number of shares (thousands) |  | Amount |  | Number of shares (thousands) |  | Amount
Balance – beginning of year |  | 2,144,815 |  |  | $ | 10,712 |  |  | 2,205,272 |  |  | $ | 10,294 |
Issued upon exercise of stock options |  | 13,531 |  |  | 280 |  |  | 19,643 |  |  | 372 |
Previously recognized liability on stock options exercised for common shares |  | — |  |  | 358 |  |  | — |  |  | 435 |
Purchase of common shares under Normal Course Issuer Bid |  | (55,350) |  |  | (286) |  |  | (80,100) |  |  | (389) |
Balance – end of year |  | 2,102,996 |  |  | $ | 11,064 |  |  | 2,144,815 |  |  | $ | 10,712 |
Summary of Stock Option Activity | The following table summarizes information relating to stock options outstanding at December 31, 2024 and 2023:
|  | 2024 |  | 2023
|  | Stock options (thousands) |  | Weighted average exercise price |  | Stock options (thousands) |  | Weighted average exercise price
Outstanding – beginning of year |  | 52,410 |  |  | $ | 26.80 |  |  | 62,300 |  |  | $ | 21.19 |
Granted |  | 15,906 |  |  | $ | 44.82 |  |  | 14,047 |  |  | $ | 40.09 |
Exercised for common shares |  | (13,531) |  |  | $ | 20.69 |  |  | (19,643) |  |  | $ | 18.92 |
Surrendered for cash settlement |  | (384) |  |  | $ | 22.19 |  |  | (435) |  |  | $ | 19.39 |
Forfeited |  | (3,595) |  |  | $ | 29.69 |  |  | (3,859) |  |  | $ | 25.43 |
Outstanding – end of year |  | 50,806 |  |  | $ | 33.90 |  |  | 52,410 |  |  | $ | 26.80 |
Exercisable – end of year |  | 10,033 |  |  | $ | 26.67 |  |  | 7,344 |  |  | $ | 21.07 |
Summary of Range of Exercise Prices of Stock Options Outstanding | The range of exercise prices of stock options outstanding and exercisable at December 31, 2024 was as follows:
|  |  |  | Stock options outstanding |  | Stock options exercisable
Range of exercise prices | Stock options outstanding (thousands) |  | Weighted average remaining term (years) |  | Weighted average exercise price |  | Stock options exercisable (thousands) |  | Weighted average exercise price
$10.38 | – | $14.99 |  |  | 6,890 |  |  | 1.07 |  | $ | 13.98 |  |  | 2,203 |  |  | $ | 12.91 |
$15.00 | – | $19.99 |  |  | 3,848 |  |  | 0.31 |  | $ | 18.65 |  |  | 1,684 |  |  | $ | 17.94 |
$20.00 | – | $24.99 |  |  | 3,203 |  |  | 1.48 |  | $ | 20.24 |  |  | 1,474 |  |  | $ | 20.15 |
$25.00 | – | $29.99 |  |  | 686 |  |  | 2.86 |  | $ | 27.12 |  |  | 169 |  |  | $ | 27.12 |
$30.00 | – | $34.99 |  |  | 5,923 |  |  | 2.50 |  | $ | 32.47 |  |  | 1,150 |  |  | $ | 32.39 |
$35.00 | – | $39.99 |  |  | 13,146 |  |  | 3.18 |  | $ | 39.24 |  |  | 2,612 |  |  | $ | 38.86 |
$40.00 | – | $44.99 |  |  | 11,134 |  |  | 4.36 |  | $ | 42.57 |  |  | 13 |  |  | $ | 42.20 |
$45.00 | – | $49.99 |  |  | 5,651 |  |  | 4.50 |  | $ | 48.04 |  |  | 728 |  |  | $ | 48.53 |
$50.00 | – | $52.98 |  |  | 325 |  |  | 5.30 |  | $ | 52.98 |  |  | — |  |  | $ | — |
|  |  |  | 50,806 |  |  | 2.90 |  | $ | 33.90 |  |  | 10,033 |  |  | $ | 26.67 |

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