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Income Tax - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2017
Income Tax Disclosure [Line Items]        
Provision for income taxes $ 59 $ 48 $ 0  
Net operating loss carryforwards       $ 1,100
Tax credit carry forward $ 30,000      
Percentage of stock owned by shareholder 5.00%      
Cumulative loss position period 3 years 3 years    
Valuation allowance against net deferred tax assets full valuation allowance full valuation allowance    
Percentage of increase of stock owned By shareholder 50.00%      
Testing Period In which Shareholding Increase By Shareholder Considered 3 years      
Valuation allowance deferred tax asset increase amount $ 75,300      
Years of statute of limitations by major tax Jurisdictions 3 years      
Current tax year subject for examination 2021 2022 2023      
Tax year remaining open 2016      
U.S Federal [Member]        
Income Tax Disclosure [Line Items]        
Net operating loss carryforwards $ 224,200      
State [Member]        
Income Tax Disclosure [Line Items]        
Net operating loss carryforwards $ 148,100      
Earliest Tax Year [Member]        
Income Tax Disclosure [Line Items]        
Tax credit carryforwards expiration date 2025      
Latest Tax Year [Member]        
Income Tax Disclosure [Line Items]        
Tax credit carryforwards expiration date 2044