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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disclosure of detailed information about property, plant and equipment [line items] |  |
Depreciation | $ 154.8 | $ 145.6
Cost of sales |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Depreciation | 152.4 | 142.8
Research and development expenses |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Depreciation | 0.5 | 0.8
Selling, general and administrative expenses |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Depreciation | $ 1.9 | $ 2.0

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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_75_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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