v3.26.1
Fair Value Measurements - Additional Information (Detail)
$ / shares in Units, $ in Thousands, shares in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Maximum maturity period of cash and cash equivalents 90 days
Cash $ 100
Custodian deposits $ 164,600
Average maturity period of cash equivalents and marketable securities 122 days
Warrant liability $ 182,724
Common stock warrants issued | shares 49.5
Pre Funded Warrants [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Prefunded common stock warrants classified as liabilities $ 100
Share Purchase Agreement [Member] | Measurement Input, Probability of Success [Member] | Level 3 [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration] us-gaap:ValuationTechniqueDiscountedCashFlowMember
Measurement Input 0.906
Share Purchase Agreement [Member] | Measurement Input, Discount Rate [Member] | Level 3 [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration] us-gaap:ValuationTechniqueDiscountedCashFlowMember
Measurement Input 0.308
Sweep Account [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Cash equivalents $ 21,600
Maximum [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Maturity period of securities 1 year
Minimum [Member] | Pre Funded Warrants [Member]  
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Exercise price per share of warrant | $ / shares $ 0.001