Represents the additional milestone payment to be received on achievement of sales thresholds.

No definition available.

Name:	arlz_AdditionalPaymentOnAchievingPerformanceTargets
Namespace Prefix:	arlz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of sales performance milestone payments to be received by the entity under the terms of the agreement.

+ References

No definition available.

+ Details

Name:	arlz_AgreementNumberOfPerformanceMilestones
Namespace Prefix:	arlz_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents interest percentage to be received on royalties paid on net sales specified under the terms of the agreement.

+ References

No definition available.

+ Details

Name:	arlz_PercentageOfInterestInAnyRoyaltiesPaidOnNetSales
Namespace Prefix:	arlz_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Quarterly minimum amount of royalty guaranteed to be paid to entity under the terms of the agreement.

+ References

No definition available.

+ Details

Name:	arlz_QuarterlyMinimumRoyalty
Namespace Prefix:	arlz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_TypeOfArrangementAxis=arlz_AgreementPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=arlz_AgreementDevelopmentAndCommercializationPernixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

BUSINESS AGREEMENTS - GSK, CII and Pernix Agreements (Details) $ in Millions	1 Months Ended
	Jan. 31, 2015 USD ($)	Aug. 31, 2014 USD ($) item	Nov. 30, 2011
CII Purchase Agreement
Business agreements
Interest in royalties to be received (as a percent)			20.00%
Pernix Agreement
Business agreements
Number of sales performance milestone payments to be received \| item		2
Guaranteed quarterly minimum royalty	$ 4.0
Maximum \| Pernix Agreement
Business agreements
Additional milestone payment to be made on achievement of sales thresholds		$ 80.0