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Collaboration and Licensing Agreements (Tables) | 3 Months Ended
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Mar. 31, 2021
Collaboration and Licensing Agreements |
Schedule of revenue by licensees | The revenues recorded for the three months ended March 31, 2021 and 2020 were earned principally from the following licensees (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended |
​ | ​ | March 31, |
​ | ​ | 2021 | ​ | 2020 |
​ | ​ | ​ | ​ | ​ | ​
Aimmune | ​ | $ | — |  | $ | 9.6 | ​
Alexion |  | ​ | 5.3 | ​ | ​ | 3.3 | ​
Astellas | ​ | ​ | — | ​ | ​ | 0.3 | ​
Genentech | ​ | ​ | 0.2 | ​ | ​ | 0.7 | ​
Gilead | ​ | ​ | — | ​ | ​ | 6.0 | ​
Janssen | ​ | ​ | 14.6 | ​ | ​ | — | ​
MorphoSys | ​ | ​ | 13.9 | ​ | ​ | 12.5 | ​
Total | ​ | $ | 34.0 | ​ | $ | 32.4 | ​
Schedule of disaggregation of revenue | The table below summarizes the disaggregation of revenue recorded for the three months ended March 31, 2021 and 2020 (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended |
​ | ​ | March 31, |
​ | ​ | 2021 | ​ | 2020 |
​ | ​ | ​ | ​ | ​ | ​
Research collaboration |  | $ | 14.8 |  | $ | 1.0 | ​
Milestone | ​ | ​ | 12.5 | ​ |  | 12.5 | ​
Licensing | ​ | ​ | — | ​ |  | 15.6 | ​
Royalties | ​ | ​ | 6.7 | ​ | ​ | 3.3 | ​
Total | ​ | $ | 34.0 | ​ | $ | 32.4 | ​

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of revenue by major licensees. + References No definition available. + Details
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