Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Components Of Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Restricted Cash and Cash Equivalent Item [Line Items]
Current restricted cash	$ 4,112	$ 0
Noncurrent restricted cash	43,321	$ 0
Restricted cash	47,433
Boston Lease payments
Restricted Cash and Cash Equivalent Item [Line Items]
Current restricted cash	4,059
Noncurrent restricted cash	34,950
Metabasis CVR payments
Restricted Cash and Cash Equivalent Item [Line Items]
Current restricted cash	53
LAVA CVR payments
Restricted Cash and Cash Equivalent Item [Line Items]
Noncurrent restricted cash	6,738
Boston Lease security deposit
Restricted Cash and Cash Equivalent Item [Line Items]
Noncurrent restricted cash	$ 1,633

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.