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Carrying value of warrants.

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Fair value of common shares.

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Fair value of ordinary shares.

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Fair value of warrants.

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Number of common shares acquired.

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Number of options held.

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Number of ordinary shares held.

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Number of ordinary shares placed in escrow.

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Number of warrants acquired.

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Number of warrants held.

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Payments for purchase of ordinary shares and warrants.

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Percentage of ownership interest held.

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Royalty receivable term.

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The interest rate on borrowings. [Refer: Borrowings]

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The cash outflow for loans and advances made to related parties. [Refer: Related parties [member]]

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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.

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The gains (losses) on available-for-sale financial assets. [Refer: Financial assets available-for-sale]

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The gains (losses) recognised in other comprehensive income on remeasuring available-for-sale financial assets, before tax. [Refer: Financial assets available-for-sale]

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The amount of income tax relating to amounts recognised in other comprehensive income in relation to available-for-sale financial assets. [Refer: Financial assets available-for-sale; Other comprehensive income]

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The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

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The cash inflow from the exercise of options.

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The cash outflow for the purchase of interests in associates. [Refer: Associates [member]]

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The weighted average exercise price of share options exercisable in a share-based payment arrangement. [Refer: Weighted average [member]]

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Other Financial Assets - Summary of Changes in Other Financial Assets (Parenthetical) (Details)				3 Months Ended	12 Months Ended
	Dec. 31, 2017 shares	Nov. 27, 2017 CAD ($)	Sep. 29, 2017 CAD ($)	Mar. 31, 2018 CAD ($) shares	Mar. 31, 2018 CAD ($) Warrant shares	Mar. 31, 2017 CAD ($)	Mar. 31, 2018 AUD ($) shares
Disclosure Of Financial Assets [Line Items]
Exercise price of share options exercisable				$ 4.55	$ 4.55
Percentage of voting equity interests acquired				0.00%	0.00%		0.00%
Proceeds from exercise of stock options					$ 11,053,000	$ 6,961,000
AusCann Group Holdings Ltd.
Disclosure Of Financial Assets [Line Items]
Number of ordinary shares held \| shares	29,865,000
Percentage of issued and outstanding ordinary shares	11.00%
Number of options held \| shares	7,677,639
Number of ordinary shares placed in escrow \| shares					27,465,000
Exercise price of share options exercisable							$ 0.20
AusCann Group Holdings Ltd. \| Shares
Disclosure Of Financial Assets [Line Items]
Gain on fair value changes on available for sale financial assets						15,900,000
Gain on fair value changes on available for sale financial assets, Taxes						2,428,000
AusCann Group Holdings Ltd. \| Options
Disclosure Of Financial Assets [Line Items]
Gain on fair value changes on available for sale financial assets						$ 5,702,000
James E. Wagner Cultivation Ltd. \| Canopy Rivers Corporation
Disclosure Of Financial Assets [Line Items]
Number of common shares acquired from affiliate \| shares					37,000
Number of warrants acquired from affiliate \| Warrant					5,000
Payments for purchase of ordinary shares and warrants from affiliate					$ 3,975,000
Cash advanced to joint venture					$ 2,500,000
Interest rate				8.00%	8.00%		8.00%
Royalty receivable term					20 years
Percentage of voting equity interests acquired				14.70%	14.70%		14.70%
Carrying value of ordinary shares					$ 3,863,000
Carrying value of warrants					112,000
Fair value of ordinary shares					10,591,000
Fair value of warrants					$ 814,000
Vapium Incorporated
Disclosure Of Financial Assets [Line Items]
Percentage of voting equity interests acquired		12.24%	9.93%
Ownership interest for cash investment			$ 960,000
Proceeds from exercise of stock options		$ 250,000
HydRx Farms Ltd.
Disclosure Of Financial Assets [Line Items]
Number of ordinary shares held \| shares				3,100,307	3,100,307		3,100,307
Percentage of voting equity interests acquired				8.70%	8.70%		8.70%
Fair value of warrants				$ 5,210,000
Fair value of common shares				$ 12,401,000	$ 12,401,000
Number of warrants held \| shares				1,860,680	1,860,680		1,860,680