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Debt - Summary of Components of Debt (Details) - CAD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026
Debt Instrument [Line Items]
Principal	$ 285,365	$ 280,972
Book Value	240,203	233,360
Less: current portion	(28,824)	(16,237)
Long-term portion	$ 211,379	217,123
Loan Agreement
Debt Instrument [Line Items]
Maturity date	Jan. 31, 2031
Principal	$ 230,365	225,972
Book Value	$ 184,843	177,042
January 2026 Convertible Debenture
Debt Instrument [Line Items]
Maturity date	Jul. 08, 2031
Principal	$ 55,000	55,000
Book Value	$ 55,360	$ 56,318

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