Closing Stock Price

No definition available.

Name:	acb_ClosingStockPrice
Namespace Prefix:	acb_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Financial Assets, At Fair Value, Volume Weighted Average Trading Price, Period

+ References

No definition available.

+ Details

Name:	acb_FinancialAssetsAtFairValueVolumeWeightedAverageTradingPricePeriod
Namespace Prefix:	acb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Financial Assets Purchased, Warrants, Exercise Price

+ References

No definition available.

+ Details

Name:	acb_FinancialAssetsPurchasedWarrantsExercisePrice
Namespace Prefix:	acb_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Warrants Held By Entity

+ References

No definition available.

+ Details

Name:	acb_NumberOfWarrantsHeldByEntity
Namespace Prefix:	acb_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Warrants Received, Percentage Of Common Shares Issued And Outstanding On Date Of First Exercise

+ References

No definition available.

+ Details

Name:	acb_WarrantsReceivedPercentageOfCommonSharesIssuedAndOutstanding
Namespace Prefix:	acb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	ifrs-full_DisclosureOfFairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncomeLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_25&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_FinancialAssetsAtFairValue
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The gains (losses) recognised in profit or loss for assets measured at fair value that are attributable to the change in unrealised gains or losses relating to those assets held at the end of the reporting period. [Refer: At fair value [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2019-01-01
-Paragraph 93
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2019-en-r&anchor=para_93_f&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The value of significant unobservable input used in the measurement of the fair value of assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2019-01-01
-Paragraph 93
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2019-en-r&anchor=para_93_d&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_SignificantUnobservableInputAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=acb_RestrictedBackInRightWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CounterpartiesAxis=acb_AustralisCapitalInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=ifrs-full_InterestRateMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=acb_DividendYieldMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=acb_ExpectedLifeMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Strategic Investments - Australis Capital Inc. (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Sep. 19, 2018 day $ / shares shares	Jun. 30, 2020 CAD ($) year $ / shares	Jun. 30, 2019 CAD ($) year $ / shares	Jun. 30, 2020 $ / shares
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Share price (in CAD per share)				$ 12.42
Restricted Back-In Right Warrants \| ACI \| Derivatives and convertible debentures at FVTPL
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Number of warrants held by entity (in shares) \| shares	22,628,751
Exercise price of warrants (in CAD per share)	$ 0.20
Warrants received, percentage of common shares issued and outstanding	20.00%
Financial assets, at fair value, volume weighted average trading price, period \| day	5
Financial assets, at fair value \| $		$ 3.2	$ 10.1
Share price (in CAD per share)		$ 0.22	$ 0.92
Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement \| $		$ (6.9)	$ 9.6
Risk-free interest rate \| Restricted Back-In Right Warrants \| ACI \| Derivatives and convertible debentures at FVTPL
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Significant unobservable input, assets		0.0093	0.0181
Dividend yield \| Restricted Back-In Right Warrants \| ACI \| Derivatives and convertible debentures at FVTPL
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Significant unobservable input, assets		0	0
Historical volatility for shares \| Restricted Back-In Right Warrants \| ACI \| Derivatives and convertible debentures at FVTPL
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Significant unobservable input, assets		1.1601	0.4897
Expected life \| Restricted Back-In Right Warrants \| ACI \| Derivatives and convertible debentures at FVTPL
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Significant unobservable input, assets \| year		8.23	9.23