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Long-term debt - Deferred financing (Details) - CAD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Debt Disclosure [Abstract] |  |
Cost | $ 6,336 | $ 6,336
Accumulated amortization | 2,822 | 1,965
Net Book Value | $ 3,514 | $ 4,371

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