DEFERRED GAINS AND OTHER NON-CURRENT LIABILITIES (Details) - CAD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2017
Subclassifications of assets, liabilities and equities [abstract]
Deferred gains on sale and leasebacks	$ 9.1	$ 19.6
Deferred revenue and contract liabilities	134.1	99.7
Share-based compensation obligations	75.4	75.4
Contingent consideration arising on business combinations	11.9	11.0
Interest payable	15.1	9.5
Purchase options	6.4	6.2
Other	15.0	8.5
Other non-current liabilities	$ 267.0	$ 229.9	$ 217.8	$ 217.8

Deferred Gains Arising From Sale And Leaseback Transactions

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- Definition

Liabilities From Share-based Compensation Obligation

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Non-current Liabilities, Miscellaneous

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Non-current Purchase Options

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- Definition

The amount of contingent liabilities recognised in a business combination. [Refer: Contingent liabilities [member]; Business combinations [member]]

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The amount of deferred income classified as non-current. [Refer: Deferred income]

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The amount of interest recognised as a liability.

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The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

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