v3.25.2
Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Class of Stock [Line Items]            
Beginning balance $ 215,059 $ 288,124 $ 491,889 $ 554,196 $ 288,124 $ 554,196
Stock-based compensation expense 13,903 10,487 9,896 8,899    
Unrealized loss on investments (242) 364 (61) (974)    
Proceeds from exercise of stock options 83 385 439 1,859    
Par value adjustment     1      
Net Income (Loss) (71,847) (84,846) (68,063) (72,400) (156,693) (140,463)
Ending balance 157,424 215,059 434,338 491,889 157,424 434,338
Common Stock [Member]            
Class of Stock [Line Items]            
Beginning balance $ 9 $ 9 $ 8 $ 8 $ 9 $ 8
Beginning balance, shares 86,047,032 85,694,443 84,979,686 84,826,632 85,694,443 84,826,632
Stock purchase under ESPP, shares   104,115   35,463    
Proceeds from exercise of stock options, shares 11,628 42,947 47,340 113,841    
Ending balance $ 9 $ 9 $ 9 $ 8 $ 9 $ 9
Ending balance, shares 86,059,077 86,047,032 85,028,629 84,979,686 86,059,077 85,028,629
Additional Paid-In Capital [Member]            
Class of Stock [Line Items]            
Beginning balance $ 1,520,527 $ 1,509,110 $ 1,467,437 $ 1,456,370 $ 1,509,110 $ 1,456,370
Stock-based compensation expense 13,903 10,487 9,896 8,899    
Proceeds from exercise of stock options 83 385 439 1,859    
Ending balance 1,534,981 1,520,527 1,478,009 1,467,437 1,534,981 1,478,009
Accumulated Other Comprehensive(Loss) / Income [Member]            
Class of Stock [Line Items]            
Beginning balance 527 163 (756) 218 163 218
Unrealized loss on investments (242) 364 (61) (974)    
Ending balance 285 527 (817) (756) 285 (817)
Accumulated Deficit [Member]            
Class of Stock [Line Items]            
Beginning balance (1,306,004) (1,221,158) (974,800) (902,400) (1,221,158) (902,400)
Net Income (Loss) (71,847) (84,846) (68,063) (72,400)    
Ending balance $ (1,377,851) $ (1,306,004) $ (1,042,863) $ (974,800) $ (1,377,851) $ (1,042,863)