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Collaboration and Other Agreements Collaboration and Other Agreements, Incyte Corporation (Details) - Incyte MGA012 Agreement - Incyte Corporation (Incyte) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2017
Collaboration and Other Agreements [Line Items] |  |  |
Non-refundable upfront payment |  | $ 150.0 | $ 150.0
Clinical trial activities selling price amount | $ 4.0 |  |
Recognized revenue under agreement |  |  | 151.1
Clinical trial activities performed, revenue recognized |  |  | $ 1.1
Maximum |  |  |
Collaboration and Other Agreements [Line Items] |  |  |
Potential development and regulatory milestone payments | 420.0 |  |
Potential commercial milestone payments | $ 330.0 |  |
Potential proceeds from royalties percent | 24.00% |  |
Minimum |  |  |
Collaboration and Other Agreements [Line Items] |  |  |
Potential proceeds from royalties percent | 15.00% |  |

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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=63488584&loc=d3e20235-122688 + Details
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