Fair Value Measurements - Fair Value Inputs, Liabilities, Quantitative Information (Details) - Fair Value, Inputs, Level 3 $ in Thousands	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
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