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Fair Value of Financial Instruments - Summarizes the Conclusions Reached Regarding Fair Value Measurements (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Significant Unobservable Inputs (Level 3)      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Beginning Balance $ 110 $ 684  
Net Change in fair value included in earnings 16 (406)  
Purchases / Issuance 0 0  
Sales / Repurchases 0 0  
Reclass 0 0  
Ending Balance 126 $ 278  
Significant Unobservable Inputs (Level 3) | Related Party      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Beginning Balance 110    
Net Change in fair value included in earnings 173    
Purchases / Issuance 0    
Sales / Repurchases 0    
Reclass (201)    
Ending Balance 82    
Significant Unobservable Inputs (Level 3) | Nonrelated Party      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Beginning Balance 0    
Net Change in fair value included in earnings (157)    
Purchases / Issuance 0    
Sales / Repurchases 0    
Reclass 201    
Ending Balance 44    
Fair Value, Measurements, Recurring      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 126   $ 110
Fair Value, Measurements, Recurring | Nonrelated Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 44    
Fair Value, Measurements, Recurring | Warrant liability, related party | Related Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 82    
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0   0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Nonrelated Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0    
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Warrant liability, related party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities:     0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Warrant liability, related party | Related Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0    
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0   0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Nonrelated Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0    
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Warrant liability, related party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities:     0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Warrant liability, related party | Related Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 0    
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 126   110
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Nonrelated Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: 44    
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Warrant liability, related party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities:     $ 110
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Warrant liability, related party | Related Party      
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]      
Liabilities: $ 82