v3.26.3
Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Jan. 05, 2022
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Changes in fair value of warrant liabilities   $ (17,881,000) $ (9,186,000) $ (554,000) $ 11,657,000  
Change in fair value of earnout shares   8,500,000 4,800,000 400,000 (2,700,000)  
Class A common stock [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Shares subject to forfeiture 49,563          
Period over which vesting conditions shall be met 5 years          
Warrant Liabilities [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Changes in fair value of warrant liabilities   17,900,000 $ 9,200,000 600,000 $ (11,700,000)  
Fair Value, Nonrecurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Assets or liabilities measured at fair value   0   0   $ 0
Fair Value, Nonrecurring [Member] | 2031 Notes | Level 2            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Convertible notes fair value   270,800,000   270,800,000   0
Long-Term Debt   193,500,000   193,500,000    
Fair Value, Recurring [Member]            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Assets or liabilities measured at fair value   $ 0   $ 0   $ 0