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Acquisitions - Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
May 29, 2020 | Jun. 30, 2020 | Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items] |  |  |
Payments for asset acquisitions, share, value |  | $ 42,869 | $ 42,869
Censa [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Payments for asset acquisitions | $ 15,000 |  |
Payments for asset acquisitions, upfront payment | 10,400 |  |
Payments for asset acquisitions, net assets | $ 4,600 |  |
Payments for asset acquisitions, shares (in shares) | 845,364 |  |
Payments for asset acquisitions, share, value | $ 42,900 |  |
Consideration for asset acquisitions | $ 15,000 |  |
Equity Interest Issued, number of shares (in shares) | 42,900,000 |  |
Asset acquisition, transaction costs | $ 700 |  |
Asset acquisition, consideration transferred | 58,600 |  |
Asset acquisition, cash | 3,800 |  |
Asset acquisition, other assets | 800 |  |
Asset acquisition, in-process research and development | 54,000 |  |
Asset acquisition, research and development expense | 53,300 |  |
Asset acquisition, selling, general And administrative expense | 700 |  |
Asset acquisition, milestone, amount | 217,500 |  |
Asset acquisition, development and regulatory milestones | 109,000 |  |
Asset acquisition, net sales milestone | 160,000 |  |
Asset acquisition, initial milestone | 30,000 |  |
Other Research and Development Expense | $ 300 |  |

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