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Fair Value Measurements - Fair Value Inputs, Liabilities, Quantitative Information (Details) - Fair Value, Inputs, Level 3 $ in Thousands | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Revenue-based royalty |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Contingent consideration liabilities | $ 3,534 | $ 2,097
Revenue milestones |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Contingent consideration liabilities | 88 | 13,064
Regulatory approval |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Contingent consideration liabilities | $ 400 | $ 2,912
Discount rate | Revenue-based royalty | Minimum | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.12 | 0.14
Discount rate | Revenue-based royalty | Maximum | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.16 | 0.17
Discount rate | Revenue-based royalty | Weighted Average | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.149 | 0.157
Discount rate | Revenue milestones | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.130 |
Discount rate | Revenue milestones | Minimum | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability |  | 0.051
Discount rate | Revenue milestones | Maximum | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability |  | 0.140
Discount rate | Revenue milestones | Weighted Average | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability |  | 0.052
Discount rate | Regulatory approval | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.057 | 0.057
Probability of milestone payment | Regulatory approval | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unobservable inputs, contingent liability | 0.500 | 0.90

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