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Intangible Assets - Additional Information (Detail) - Jun. 30, 2015 $ in Thousands	USD ($) Candidate
Finite Lived Intangible Assets [Line Items]
Impairment charge	$ 1,870
Ceregene, Inc. [Member]
Finite Lived Intangible Assets [Line Items]
Number of clinical product candidates | Candidate	2

X

- Definition

Number of clinical product candidates.

+ References

No definition available.

+ Details

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X

- 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

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X

- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 30



-Section 50



-Paragraph 3



-Subparagraph (b)



-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

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- Details

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