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Licensing and Other Arrangements - Rezolute (Details) - Rezolute - USD ($) $ in Millions |  | 18 Months Ended
--- | --- | ---
Dec. 06, 2017 | Jun. 01, 2019
License Agreement and Common Stock Purchase Agreement |  |
Licensing and other arrangements |  |
License agreement consideration received | $ 0.0 |
License Agreement |  |
Licensing and other arrangements |  |
Percentage of decrease in future royalty obligations | 20.00% |
Agreement termination prior written notice period | 90 days |
License Agreement, RZ358 |  |
Licensing and other arrangements |  |
Maximum eligible milestone payments receivable upon achievement of development, regulatory and commercial milestones | $ 232.0 |
Royalty payment period | 12 years |
License Agreement, Non-RZ358 products |  |
Licensing and other arrangements |  |
Royalty payment period | 12 years |
License Agreement, X129 |  |
Licensing and other arrangements |  |
Upfront option fee |  | $ 1.0
Maximum eligible milestone payments receivable upon achievement of development, regulatory and commercial milestones |  | $ 237.0

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