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Basis of Presentation and Summary of Significant Accounting Policies - Revenue by Source (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 57,419 | $ 84,675 | $ 103,112 | $ 139,825
Royalties |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 17,959 | 8,616 | 31,654 | 15,728
Kyprolis |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 7,127 | 5,440 | 11,749 | 9,727
Evomela |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 2,394 | 2,193 | 5,095 | 4,526
Teriparatide injection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 5,502 | 264 | 8,413 | 264
Rylaze |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 2,317 | 0 | 3,966 | 0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 619 | 719 | 2,431 | 1,211
Captisol |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 29,545 | 62,509 | 41,667 | 93,781
Captisol - Core |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 3,325 | 9,682 | 9,551 | 10,935
Captisol - COVID |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 26,220 | 52,827 | 32,116 | 82,846
Contract |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 9,915 | 13,550 | 29,791 | 30,316
Service Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 5,453 | 7,360 | 10,599 | 12,822
License Fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 1,608 | 1,050 | 4,694 | 2,093
Milestone |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 1,275 | 3,600 | 10,364 | 12,017
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 1,579 | $ 1,540 | $ 4,134 | $ 3,384

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