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Noncontrolling Interests - Additional Information (Details) - CAD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025
Noncontrolling Interest [Line Items]
Noncontrolling interest balances or activity	$ 688,633	$ 697,594	$ 476,995	$ 478,566

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

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