PENSION PLANS AND POSTRETIREMENT BENEFITS - Components of the net benefit costs (Details) - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Employee costs: | |||
| Defined contribution expense | $ 17.1 | $ 17.0 | $ 16.3 |
| Expected employer contributions in the next fiscal year | 1.0 | ||
| Pension and postretirement benefits | |||
| Employee costs: | |||
| Service costs | 14.1 | 14.6 | 10.6 |
| Plan amendments, administrative fees and other | 1.2 | 0.8 | 0.7 |
| Interest on net defined benefit liability | 1.7 | 1.7 | 1.0 |
| Net benefit costs | $ 17.0 | $ 17.1 | $ 12.3 |
| X | ||||||||||
- References No definition available.
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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [domain]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense recognized related to defined benefit plan. No definition available.
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| X | ||||||||||
- Definition Amount of administrative fees and other expenses recognized related to plan amendments of defined benefit plan. No definition available.
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| X | ||||||||||
- Definition Amount of service cost expense recognized related to defined benefit plan. No definition available.
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| X | ||||||||||
- Definition Net benefit costs No definition available.
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- Details
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