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Capital Management - Additional Information (Details) - CAD ($) | Mar. 31, 2018 | Mar. 31, 2017
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Disclosure Of Financial Risk Management [Abstract] |  |
Dividends payable to shareholders | $ 0 |
Total managed capital | $ 1,251,660,000 | $ 650,056,000

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- Definition Disclosure of financial risk management. + References No definition available. + Details
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- Definition Net consolidated equity and debt. + References No definition available. + Details
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- Definition The amount of dividends payable by means of the distribution of non-cash assets to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRIC -Number 17 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRIC&num=17&date=2017-03-01&anchor=para_16_a&doctype=Standard -URIDate 2017-03-09 + Details
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