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Other assets - Schedule of other assets (Details) - CAD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred financing costs	$ 4,845	$ 5,891
Goodwill	520	526
Loans to affiliates and joint ventures	112	350
Derivative financial instruments	3,952	229
Long-term prepaid lease payments	416	148
Other assets, noncurrent	$ 9,845	$ 7,144

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount, after allowance for credit loss, of receivable classified as other and noncurrent.

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