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Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2023 $ 194,521 $ 12 $ 3,035,539 $ (3,542) $ (2,837,488)
Beginning balance, Shares at Dec. 31, 2023   119,556      
Proceeds from settlement of capped call 98,763   98,763    
Issuance of common stock upon exercise of stock options 9,477   9,477    
Issuance of common stock upon exercise of stock options, shares   714      
Vesting of restricted stock units, net of shares withheld for taxes (28)   (28)    
Vesting of restricted stock units, net of shares withheld for taxes. shares   997      
Share-based compensation expense 30,349   30,349    
Net loss (66,423)       (66,423)
Foreign currency translation 17     17  
Ending balance at Mar. 31, 2024 266,676 $ 12 3,174,100 (3,525) (2,903,911)
Ending balance, Shares at Mar. 31, 2024   121,267      
Beginning balance at Dec. 31, 2023 194,521 $ 12 3,035,539 (3,542) (2,837,488)
Beginning balance, Shares at Dec. 31, 2023   119,556      
Proceeds from settlement of capped call 98,763        
Net loss (161,525)        
Foreign currency translation 402        
Ending balance at Sep. 30, 2024 237,121 $ 12 3,239,262 (3,140) (2,999,013)
Ending balance, Shares at Sep. 30, 2024   122,069      
Beginning balance at Mar. 31, 2024 266,676 $ 12 3,174,100 (3,525) (2,903,911)
Beginning balance, Shares at Mar. 31, 2024   121,267      
Issuance of common stock upon exercise of stock options 1,962   1,962    
Issuance of common stock upon exercise of stock options, shares   233      
Vesting of restricted stock units, net of shares withheld for taxes. shares   102      
Share-based compensation expense 29,990   29,990    
Issuance of common stock under employee stock purchase plan 3,193   3,193    
Issuance of common stock under employee stock purchase plan, shares   85      
Net loss (37,657)       (37,657)
Foreign currency translation 163     163  
Ending balance at Jun. 30, 2024 264,327 $ 12 3,209,245 (3,362) (2,941,568)
Ending balance, Shares at Jun. 30, 2024   121,687      
Issuance of common stock upon exercise of stock options 2,556   2,556    
Issuance of common stock upon exercise of stock options, shares   112      
Vesting of restricted stock units, net of shares withheld for taxes (14)   (14)    
Vesting of restricted stock units, net of shares withheld for taxes. shares   270      
Share-based compensation expense 27,475   27,475    
Net loss (57,445)       (57,445)
Foreign currency translation 222     222  
Ending balance at Sep. 30, 2024 237,121 $ 12 3,239,262 (3,140) (2,999,013)
Ending balance, Shares at Sep. 30, 2024   122,069      
Beginning balance at Dec. 31, 2024 228,539 $ 12 3,267,201 (3,308) (3,035,366)
Beginning balance, Shares at Dec. 31, 2024   124,495      
Issuance of common stock upon exercise of stock options 281   281    
Issuance of common stock upon exercise of stock options, shares   15      
Vesting of restricted stock units, net of shares withheld for taxes (7)   (7)    
Vesting of restricted stock units, net of shares withheld for taxes. shares   1,151      
Share-based compensation expense 27,374   27,374    
Net loss (92,225)       (92,225)
Foreign currency translation 254     254  
Ending balance at Mar. 31, 2025 164,216 $ 12 3,294,849 (3,054) (3,127,591)
Ending balance, Shares at Mar. 31, 2025   125,661      
Beginning balance at Dec. 31, 2024 228,539 $ 12 3,267,201 (3,308) (3,035,366)
Beginning balance, Shares at Dec. 31, 2024   124,495      
Unrealized gain on pension benefits 137        
Net loss 81,339        
Foreign currency translation 771        
Ending balance at Sep. 30, 2025 401,168 $ 12 3,357,583 (2,400) (2,954,027)
Ending balance, Shares at Sep. 30, 2025   126,500      
Beginning balance at Mar. 31, 2025 164,216 $ 12 3,294,849 (3,054) (3,127,591)
Beginning balance, Shares at Mar. 31, 2025   125,661      
Issuance of common stock upon exercise of stock options 4,367   4,367    
Issuance of common stock upon exercise of stock options, shares   310      
Vesting of restricted stock units, net of shares withheld for taxes. shares   82      
Share-based compensation expense 27,197   27,197    
Issuance of common stock under employee stock purchase plan 2,191   2,191    
Issuance of common stock under employee stock purchase plan, shares   134      
Net loss (42,151)       (42,151)
Foreign currency translation 485     485  
Ending balance at Jun. 30, 2025 156,305 $ 12 3,328,604 (2,569) (3,169,742)
Ending balance, Shares at Jun. 30, 2025   126,187      
Issuance of common stock upon exercise of stock options 797   797    
Issuance of common stock upon exercise of stock options, shares   103      
Vesting of restricted stock units, net of shares withheld for taxes (4)   (4)    
Vesting of restricted stock units, net of shares withheld for taxes. shares   210      
Share-based compensation expense 28,186   28,186    
Unrealized gain on pension benefits 137     137  
Net loss 215,715       215,715
Foreign currency translation 32     32  
Ending balance at Sep. 30, 2025 $ 401,168 $ 12 $ 3,357,583 $ (2,400) $ (2,954,027)
Ending balance, Shares at Sep. 30, 2025   126,500