LEASES - Schedule of Undiscounted Lease Payments to be Received Under Finance Leases (Details) - CAD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	$ 214.1	$ 217.5
Unearned finance income	(56.3)	(56.9)
Discounted unguaranteed residual values of leased assets	(15.8)	(12.8)
Total investment in finance leases	142.0	147.8
Current portion (Note 11)	16.0	11.9
Non-current portion (Note 18)	126.0	135.9
Less than 1 year
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	23.9	16.4
Between 1 and 2 years
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	21.3	22.8
Between 2 and 3 years
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	18.2	17.4
Between 3 and 4 years
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	15.9	16.0
Between 4 and 5 years
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	16.4	16.0
More than 5 years
Disclosure of maturity analysis of finance lease payments receivable [line items]
Total undiscounted lease payments receivable	$ 118.4	$ 128.9

The amount of current finance lease receivables. [Refer: Finance lease receivables]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2024-01-01
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No definition available.

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The amount of the discounted unguaranteed residual value of assets subject to finance leases. Unguaranteed residual value is the portion of the residual value of the underlying asset, the realisation of which by a lessor is not assured or is guaranteed solely by a party related to the lessor. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2024-01-01
-Paragraph 94
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_94&doctype=Standard
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The gross investment in the finance lease discounted at the interest rate implicit in the lease. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset. Gross investment in the finance lease is the sum of: (a) the lease payments receivable by a lessor under a finance lease; and (b) any unguaranteed residual value accruing to the lessor. Interest rate implicit in the lease is the rate of interest that causes the present value of (a) the lease payments and (b) the unguaranteed residual value to equal to the sum of (i) the fair value of the underlying asset and (ii) the initial direct costs of the lessor.

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The amount of non-current finance lease receivables. [Refer: Finance lease receivables]

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The amount of undiscounted finance lease payments to be received. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset.

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- Definition

The amount of unearned finance income relating to the finance lease payments receivable. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset. [Refer: Finance income]

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