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REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenue by type (Details) - CAD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue from contracts with customers [Abstract]
Revenues from construction contracts	$ 1,311,119	$ 1,972,816
Services rendered	651,143	614,690
Sale of goods	571,026	445,377
Total Company	$ 2,533,288	$ 3,032,883

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- Definition

Revenue from contracts with customers [Abstract]

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The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

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The amount of revenue arising from the rendering of services. [Refer: Revenue]

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