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Intangible Assets And Goodwill - Additional Information (Details) - CAD ($) $ in Thousands |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 07, 2018 | Sep. 07, 2017 | Mar. 31, 2018 | Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2016
Disclosure Of Intangible Assets [Line Items] |  |  |  |  |  |
Impairment loss |  |  | $ 28,000 |  |  |
Number of common shares issued | 117,253 |  | 199,320,981 | 199,320,981 | 162,187,262 | 98,818,213
Common shares issued value | $ 3,239 | $ 1,003 |  |  |  |
Acquisition-related costs expensed | 43 |  |  | $ 3,406 | $ 7,369 |
Property, plant and equipment |  |  | $ 303,682 | 303,682 | 96,270 | $ 44,984
Intangible assets |  |  | $ 101,526 | 101,526 | $ 162,263 | $ 31,861
Shares received value | 1,127 |  |  |  |  |
Health Canada Licenses |  |  |  |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |  |  |  |
Net derecognition of intangible assets |  |  |  | $ 26,282 |  |
Tangible And Intangible Asset Acquisition |  |  |  |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |  |  |  |
Property, plant and equipment | 50 |  |  |  |  |
Intangible assets | $ 3,232 |  |  |  |  |

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- Definition The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_d_ii&doctype=Standard -URIDate 2017-03-09 + Details
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