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Stockholders' Equity - Additional Information (Detail)
 1 Months Ended 3 Months Ended 6 Months Ended 15 Months Ended 35 Months Ended
Feb. 27, 2025
USD ($)
May 21, 2024
shares
Jul. 26, 2023
USD ($)
shares
Oct. 31, 2025
USD ($)
Jul. 31, 2025
shares
May 31, 2025
USD ($)
shares
May 31, 2015
USD ($)
Tranche
$ / shares
shares
Feb. 28, 2014
Tranche
$ / shares
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Milestone
$ / shares
shares
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2016
USD ($)
Jun. 30, 2026
$ / shares
shares
Dec. 31, 2025
$ / shares
shares
Feb. 20, 2014
USD ($)
Equity [Line Items]                                
Preferred stock, shares authorized                 10,000,000   10,000,000     10,000,000 10,000,000  
Preferred stock, par value | $ / shares                 $ 0.00001   $ 0.00001     $ 0.00001 $ 0.00001  
Preferred stock, shares outstanding                 0   0     0 0  
Common stock, shares authorized                 300,000,000   300,000,000     300,000,000 300,000,000  
Common stock, par value | $ / shares                 $ 0.00001   $ 0.00001     $ 0.00001 $ 0.00001  
Number of common stock for issuance in exchange for future services from founders               1,000,000                
Common stock price per share | $ / shares               $ 0.01                
Number of tranches | Tranche             2 2                
Unrecognized compensation expense | $             $ 62,000                 $ 168,000
Common stock shares repurchased             633,810                  
Repurchase of common stock from stockholders, per share | $ / shares             $ 0.00001                  
Remaining number of repurchased shares             366,190                  
Stock-based compensation | $                 $ 11,133,000 $ 13,547,000 $ 21,470,000 $ 24,895,000        
Performance Based Restricted Stock Units [Member]                                
Equity [Line Items]                                
Number of remaining shares unvested upon achievement           183,095                    
Incremental cost related to modification | $       $ 300,000   $ 5,200,000                    
Number of remaining shares vested upon achievement         62,252                      
Stock-based compensation | $                     $ 39,000          
Forfeiture of performance based award                     0          
Number of milestones to be achieve | Milestone                     3          
ATM Agreement [Member]                                
Equity [Line Items]                                
Gross proceeds from common stock issuance | $     $ 40,400,000                          
Shelf registration statement expiry date     Jul. 26, 2026                          
ESPP [Member]                                
Equity [Line Items]                                
Shares issued under ESPP                     15,500 7,764        
2024 ESPP [Member]                                
Equity [Line Items]                                
Shares issued under ESPP   5,500,000                            
Common Stock [Member]                                
Equity [Line Items]                                
Common stock sold                 695,642   1,034,320          
Common Stock [Member] | ATM Agreement [Member]                                
Equity [Line Items]                                
Common stock sold                           4,591,231,000,000    
Shelf registration statement expiry date     Jul. 26, 2023                          
Repurchase Program [Member]                                
Equity [Line Items]                                
Stock repurchase program, additional maturity period 2 years                              
Maximum [Member] | Common Stock [Member] | ATM Agreement [Member]                                
Equity [Line Items]                                
Common stock sold     200,000,000                          
Maximum [Member] | Repurchase Program [Member]                                
Equity [Line Items]                                
Purchase of common stock and warrants | $ $ 250,000,000                              
Tranche One [Member]                                
Equity [Line Items]                                
Number of common stock for issuance in exchange for future services from founders               500,000                
Remaining number of repurchased shares             183,095                  
Stock compensation expense | $                         $ 31,000      
Tranche Two [Member]                                
Equity [Line Items]                                
Number of common stock for issuance in exchange for future services from founders               500,000                
Remaining number of repurchased shares             183,095                  
Performance Target Achieved [Member] | Performance Based Restricted Stock Units [Member]                                
Equity [Line Items]                                
Number of shares vested upon achievement                     60,422          
Performance Target Partially Achieved [Member] | Performance Based Restricted Stock Units [Member]                                
Equity [Line Items]                                
Number of remaining shares unvested upon achievement                     30,210          
Number of shares vested upon achievement                     30,211