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Derivative instruments - Narrative (Details) gallon in Millions, $ in Millions, $ in Millions | Jun. 30, 2025 CAD ($) gallon | Mar. 31, 2025 CAD ($) gallon | Dec. 31, 2024 USD ($) gallon | Jun. 30, 2024 CAD ($) | Dec. 31, 2023 USD ($)
--- | --- | --- | --- | --- | ---
Foreign exchange forward contracts |  |  |  |  |
Disclosure of derivative instruments [Line Items] |  |  |  |  |
Amount hedged per month |  |  |  | $ 43.5 |
Fair value of hedged instrument |  |  | $ 5.3 |  | $ 3.2
Foreign exchange forward contracts | Hedging Contracts |  |  |  |  |
Disclosure of derivative instruments [Line Items] |  |  |  |  |
Amount hedged per month | $ 37.0 | $ 45.0 |  |  |
Diesel Fuel Hedge Swap Contracts |  |  |  |  |
Disclosure of derivative instruments [Line Items] |  |  |  |  |
Fair value of hedged instrument |  |  | $ 0.1 |  | $ 1.1
Number of gallons hedged per month | gallon |  |  | 0.7 |  |
Diesel Fuel Hedge Swap Contracts | Hedging Contracts |  |  |  |  |
Disclosure of derivative instruments [Line Items] |  |  |  |  |
Number of gallons hedged per month | gallon | 0.2 | 0.7 |  |  |

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- Definition The amount of a hedging instrument, recognised as an asset. [Refer: Hedging instruments [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 24A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24A_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount hedged per month by the derivative instrument. + References No definition available. + Details
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- Definition Amount Of Gallons Hedged Per Month + References No definition available. + Details
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- Definition Disclosure of derivative instruments. + References No definition available. + Details
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- Details
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- Details
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- Details
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