Fair Value Measurements - Schedule of Estimated Fair Value of Significant Unobservable Inputs (Details) - Humabs	Sep. 30, 2025
Clinical and Regulatory Milestones | Discount rates
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value contingent consideration measurement input (as a percent)	0.104
Clinical and Regulatory Milestones | Probability of achievement
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value contingent consideration measurement input (as a percent)	0.855
Commercial Milestones | Discount rates
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value contingent consideration measurement input (as a percent)	0.110
Commercial Milestones | Probability of achievement
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value contingent consideration measurement input (as a percent)	0.855
Commercial Milestones | Volatility
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value contingent consideration measurement input (as a percent)	0.600