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Intangible Assets - Carrying Value of Intangibles Assets (Detail) $ in Thousands | Dec. 31, 2014 USD ($)
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Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 1,870
CERE-110 for the treatment of Alzheimer's disease ("IPR&D") [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | 1,640
CERE-120 for the treatment of Parkinson's disease ("IPR&D") [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 230

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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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