Name:	apha_IfrsGainLossOnSaleOfEquityInvestments
Namespace Prefix:	apha_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Price of a single share of a number of saleable stocks of a company.

No definition available.

Name:	apha_IfrsSharePrice
Namespace Prefix:	apha_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Number of days to be used for calculating volume weighted trading price.

No definition available.

Name:	apha_NumberOfDaysUsedForCalculatingVolumeWeightedTradingPrice
Namespace Prefix:	apha_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the cash paid in exchange for option to buy back shares.

No definition available.

Name:	apha_PaymentMadeInExchangeForOptionToBuybackSharesUnderObligationAgreement
Namespace Prefix:	apha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percent of discount rate on market price of newly trading shares.

No definition available.

Name:	apha_PercentOfDiscountRateOnMarketPriceOfNewlyTradingShares
Namespace Prefix:	apha_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Number of shares released from escrow and sold as part of the Obligation Agreement.

No definition available.

Name:	apha_SharesReleasedFromEscrowAndSoldAsPartOfObligationAgreement
Namespace Prefix:	apha_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Amount of termination fees under Obligation Agreement.

No definition available.

Name:	apha_TerminationFeesUnderObligationAgreement
Namespace Prefix:	apha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the threshold price per share for specific downside risk protection.

No definition available.

Name:	apha_ThresholdPricePerShareForSpecificDownsideRiskProtection
Namespace Prefix:	apha_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

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

The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2018-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_16&doctype=Standard
-URIDate 2018-03-16