Shareholders' Equity (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Disclosure of terms and conditions of share-based payment arrangement [line items] |
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| Schedule of changes in share capital |
| | | | | | | | | | | Number | | | | | | | | of shares | | | Amount | | Balance at January 1, 2024 | | | 192,175,042 | | $ | 5,728.2 | | Exercise of stock options | | | 71,864 | | | 3.6 | | Vesting of restricted share units | | | 18,340 | | | 2.7 | | Dividend reinvestment plan | | | 287,449 | | | 34.6 | | Balance at December 31, 2024 | | | 192,552,695 | | $ | 5,769.1 | | | | | | | | | | Balance at January 1, 2025 | | | 192,552,695 | | $ | 5,769.1 | | Exercise of stock options | | | 110,917 | | | 9.9 | | Vesting of restricted share units | | | 33,274 | | | 5.7 | | Dividend reinvestment plan | | | 101,806 | | | 18.7 | | Balance at December 31, 2025 | | | 192,798,692 | | $ | 5,803.4 | |
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| Schedule of dividends paid |
| | | | | | | | | | | | | 2025 | | | 2024 | | Cash dividends | | | $ | 275.1 | | | $ | 242.4 | | DRIP dividends | | | | 18.7 | | | | 34.6 | | | | | $ | 293.8 | | | $ | 277.0 | |
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| Schedule of options to purchase common shares that have been granted |
| | | | | | | | | | | | | Weighted | | | | | | | average exercise | | | | | Number | | price | | Stock options outstanding, at January 1, 2024 | | | 669,201 | | C$ | 111.76 | | Granted | | | 45,396 | | C$ | 167.57 | | Exercised | | | (71,864) | | C$ | 52.67 | | Forfeited | | | (10,353) | | C$ | 180.58 | | Stock options outstanding, at December 31, 2024 | | | 632,380 | | C$ | 121.36 | | | | | | | | | | Stock options outstanding, at January 1, 2025 | | | 632,380 | | C$ | 121.36 | | Granted | | | 16,345 | | C$ | 225.87 | | Exercised | | | (110,917) | | C$ | 97.44 | | Forfeited | | | (2,000) | | C$ | 168.43 | | Stock options outstanding, at December 31, 2025 | | | 535,808 | | C$ | 129.32 | | | | | | | | | | Exercisable stock options, at December 31, 2024 | | | 524,919 | | C$ | 110.82 | | Exercisable stock options, at December 31, 2025 | | | 446,565 | | C$ | 118.70 | |
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| Schedule of fair value of options calculated using Black-Scholes option pricing model and weighted average assumptions utilized |
| | | | | | | | | | | 2025 | | | 2024 | | Risk-free interest rate | | | 2.71 | % | | 3.08 | % | Expected dividend yield | | | 0.94 | % | | 1.20 | % | Expected price volatility of the Company’s common shares | | | 26.1 | % | | 26.4 | % | Expected life of the option | | | 4 years | | | 4 years | | Forfeiture rate | | | 0 | % | | 0 | % |
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| Schedule of options to purchase common shares outstanding, exercise prices and weighted average lives to maturity |
| | | | | | | | | | | | | | | | Weighted | | | Exercise | | Options | | Options | | average life | | | price | | outstanding | | exercisable | | (years) | | | C$75.45 to C$82.11 | | 104,775 | | 104,775 | | 0.86 | | | C$82.12 to C$97.34 | | 91,772 | | 91,772 | | 2.71 | | | C$97.35 to C$141.97 | | 119,022 | | 119,022 | | 3.07 | | | C$141.98 to C$171.04 | | 102,201 | | 51,347 | | 6.40 | | | C$171.05 to C$231.18 | | 118,038 | | 79,649 | | 5.39 | | | | | 535,808 | | 446,565 | | 3.28 | |
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| Schedule of number of shares outstanding |
| | | | | | | | | | | | For the year ended December 31, | | | Performance- | | Time-based | | | | | based RSUs | | RSUs | | Total RSUs | Balance at January 1, 2024 | | | 71,051 | | | 31,053 | | | 102,104 | Granted | | | 29,694 | | | 20,744 | | | 50,438 | Settled | | | (2,639) | | | (15,701) | | | (18,340) | Forfeited | | | (22,086) | | | (757) | | | (22,843) | Balance at December 31, 2024 | | | 76,020 | | | 35,339 | | | 111,359 | | | | | | | | | | | Balance at January 1, 2025 | | | 76,020 | | | 35,339 | | | 111,359 | Granted | | | 21,731 | | | 15,082 | | | 36,813 | Settled | | | (16,368) | | | (16,906) | | | (33,274) | Forfeited | | | (7,641) | | | — | | | (7,641) | Balance at December 31, 2025 | | | 73,742 | | | 33,515 | | | 107,257 |
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| Schedule of share purchase warrants |
| | | | | | | | | | | At December 31, | | At December 31, | | | | | 2025 | | | 2024 | | Common shares outstanding | | | 192,798,692 | | | 192,552,695 | | Stock options(1) | | | 535,808 | | | 632,380 | | Restricted Share Units(2) | | | 107,257 | | | 111,359 | | | | | 193,441,757 | | | 193,296,434 | |
| 1 | There were 535,808 stock options under our share compensation plan outstanding to directors, officers, employees and others with exercise prices ranging from C$75.45 to C$231.18 per share. The above table assumes all stock options are exercisable. |
| 2 | There were 33,515 time-based RSUs and 73,742 performance-based RSUs. Vesting of the performance-based RSUs are subject to the achievement of certain performance criteria and a performance multiplier which will range from 0% to 200% of the number granted. The above table assumes a performance multiplier of 100% of performance-based RSUs granted. |
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| DSU plan |
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| Disclosure of terms and conditions of share-based payment arrangement [line items] |
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| Schedule of number of shares outstanding |
| | | | | | | | | | | 2025 | | | 2024 | | Balance at beginning of year | | | 94,836 | | | 119,429 | | Granted | | | 1,540 | | | 13,975 | | Settled | | | - | | | (38,568) | | Balance at end of year | | | 96,376 | | | 94,836 | |
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