v3.26.3
Collaboration, Out-Licensing and Related Agreements - Schedule of Reconciliation of Contract and Financing Liability from ALK Collaboration Agreement (Detail)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Financing Liability, Balance at December 31, 2025 $ 72,140
Financing Liability, Balance at September 30, 2026 75,208
ALK Collaboration Agreement [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Contract Liability, Balance at December 31, 2025 1,739
Regulatory Milestone Allocated to Development and Regulatory Performance Obligations 69
Revenue recognized related to development and regulatory performance obligations (250)
Contract Liability, Balance at September 30, 2026 1,558
ALK Collaboration Agreement [Member] | ALK Financing Liability [Member]  
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]  
Financing Liability, Balance at December 31, 2025 72,140
Regulatory milestone allocated to the EEA License 2,393
Sales-based royalties earned under the EEA License 675
Financing Liability, Balance at September 30, 2026 $ 75,208