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Collaboration and License Agreements, Janssen Biotech, Inc. (Details) - Janssen Biotech, Inc. [Member] - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	Jan. 31, 2015	Jun. 30, 2015	Jun. 30, 2015
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Sale of common stock (in shares)	1,923,077
Sale of common stock (in dollars per share)	$ 39.00
Proceeds of stock sale	$ 75.0
Additional Potential Clinical Milestone Payments Under Agreement		$ 205.0	$ 205.0
Additional Potential Regulatory Milestone Payments Under Agreement		220.0	220.0
Additional Potential Sales Milestone Payments Under Agreement		150.0	150.0
Premium received on stock purchase		12.3	12.3
Recognized revenue under agreement		$ 0.0	$ 62.3
Non-refundable upfront payment	50.0
Amount allocated to equity	62.7
Amount allocated to license and R&D	62.3
Total consideration	$ 125.0

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- Definition

Aggregate potential clinical milestone payments available to be earned under collaboration agreement.

+ References

No definition available.

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- Definition

Aggregate potential regulatory milestone payments available to be earned under a collaboration arrangement.

+ References

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- Definition

Aggregate potential sales milestone payments available to be earned under collaboration agreement.

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- Definition

Portion of consideration allocated to equity

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- Definition

Portion of consideration allocated to license and pre-clinical research and development

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- Definition

Initial fee received from collaboration or license agreement.

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- Definition

Amount by which purchase price exceeds fair value for common stock purchased by collaborator.

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- Definition

Total consideration received under agreement

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- 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.

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- Definition

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.

+ References

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



-Publisher FASB



-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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Cash received on stock transaction after deduction of issuance costs.

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