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Research and License Agreements - Additional Information (Detail) (Pfizer License Agreement [Member], USD $) In Millions, unless otherwise specified	1 Months Ended		6 Months Ended		18 Months Ended
	May 31, 2014	Oct. 31, 2011	Jun. 30, 2014	Jun. 30, 2013 Up-Front Payment Arrangement [Member]	Mar. 31, 2013 Up-Front Payment Arrangement [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Potential milestone payments upon the achievement of specified development milestones		$ 115.0
Potential milestone payments upon the achievement of specified regulatory milestones		70.0
Potential milestone payments upon the achievement specified levels of annual net sales of licensed products		135.0
Non-refundable payment against milestone payment	15.0
Payment made on execution of milestone agreement		22.5
Remaining amount of milestone payment	20.0
Period of up-front payment			1 year 6 months
Up-front payment received recognized as revenue				3.8	22.5
Royalty payments received from milestone one			10.00%
Accrued expense			$ 1.5

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- Definition

Maximum milestone payment upon achievement of specified development milestone.

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- Definition

Maximum milestone payment upon achievement of specified levels of annual net sales of licensed products.

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- Definition

Maximum milestone payment upon achievement of specified regulatory milestone.

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Mile Stone Payment Remaining Amount Receivable

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- Definition

Non Refundable Payment Received

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- Definition

Payments made on execution of milestone agreement.

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- Definition

Royalty Payment Percentage

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- Definition

Upfront payment recognition period.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



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-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

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-Subparagraph (SX 210.7-03.15(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7



Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 03

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-Subparagraph 5

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Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity.

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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