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Component: (Network and Table)
Network
100700 - Disclosure - Income Taxes - Schedule of Components of Loss Before Income Taxes (Detail)
(http://www.adverum.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfComponentsOfLossBeforeIncomeTaxesDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001501756 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Income Tax Disclosure [Abstract]
 
 
 
U.S.
(96,498,000) 
(47,235,000) 
(25,006,000) 
Foreign
(18,024,000) 
(218,000) 
(398,000) 
Net loss before tax benefit
(114,522,000) 
 
(47,453,000) 
 
(25,404,000)