XML 40 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Discontinued Operations (Details) (USD $) | 1 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2011 | Dec. 31, 2009 | Jun. 30, 2012
Discontinued Operations (Textual) [Abstract] |  |  |
Non cash consideration received in sale of interest in subsidiary | $ 5,000,000 |  |
Period of revenue milestones considered for contingent payment |  |  | 10 years
Contingent amount to be received under discontinued business | 140,000,000 |  |
Upfront consideration of discontinued operation |  |  | 350,000
Reimbursements of patent and license expenses |  | $ 80,000 |

X
- Definition Contingent amount to be received under discontinued business. + References No definition available. + Details
Name: | arwr_ContingentAmountToBeReceivedUnderDiscontinuedBusiness
Namespace Prefix: | arwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | arwr_DiscontinuedOperationsTextualAbstract
Namespace Prefix: | arwr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Non cash consideration received in sale of interest in subsidiary. + References No definition available. + Details
Name: | arwr_NonCashConsiderationReceivedInSaleOfInterestInSubsidiary
Namespace Prefix: | arwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period of revenue milestones considered for contingent payment. + References No definition available. + Details
Name: | arwr_PeriodOfRevenueMilestonesConsideredForContingentPayment
Namespace Prefix: | arwr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reimbursements of patent and license expenses. + References No definition available. + Details
Name: | arwr_ReimbursementsOfPatentAndLicenseExpenses
Namespace Prefix: | arwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Upfront consideration of discontinued operation. + References No definition available. + Details
Name: | arwr_UpfrontConsiderationOfDiscontinuedOperation
Namespace Prefix: | arwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant