| Component: (Network and Table) | |
|---|---|
| Network | 100210 - Disclosure - Property and Equipment (Tables) (http://www.arrowheadresearch.com/20160930/taxonomy/role/DisclosurePropertyAndEquipmentTables) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000879407 (http://www.sec.gov/CIK) |
| Property Plant And Equipment [Abstract] | Period [Axis] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2015-10-01 - 2016-09-30 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property Plant And Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary of Property and Equipment | The following table summarizes the Company’s major classes of property and equipment:
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