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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2020 $ 627,009 $ 16 $ 2,612,663 $ (1,985,706) $ 36
Beginning balance (in shares) at Dec. 31, 2020   159,637,771      
Issuance of common stock from exercise of stock options and units 12,850   12,850    
Issuance of common stock from exercise of stock options and units (in shares)   1,078,074      
Issuance of common stock pursuant to employee stock purchase plan 5,312   5,312    
Issuance of common stock pursuant to employee stock purchase plan (in shares)   296,850      
Net Income (Loss) (167,870)     (167,870)  
Stock-based compensation 63,821   63,821    
Other comprehensive income (loss) (228)       (228)
Ending balance at Dec. 31, 2021 540,894 $ 16 2,694,646 (2,153,576) (192)
Ending balance (in shares) at Dec. 31, 2021   161,012,695      
Issuance of common stock from exercise of stock options and units 3,705   3,705    
Issuance of common stock from exercise of stock options and units (in shares)   721,652      
Issuance of common stock pursuant to employee stock purchase plan 4,494   4,494    
Issuance of common stock pursuant to employee stock purchase plan (in shares)   330,525      
Net Income (Loss) (215,975)     (215,975)  
Stock-based compensation 68,078   68,078    
Other comprehensive income (loss) (783)       (783)
Ending balance at Dec. 31, 2022 $ 400,413 $ 16 2,770,923 (2,369,551) (975)
Ending balance (in shares) at Dec. 31, 2022   162,064,872      
Issuance of common stock from exercise of stock options and units (in shares) 1,046,035        
Issuance of common stock from exercise of stock options and units $ 20,309   20,309    
Issuance of common stock from exercise of stock options and units (in shares)   2,236,849      
Issuance of common stock pursuant to employee stock purchase plan 4,820   4,820    
Issuance of common stock pursuant to employee stock purchase plan (in shares)   348,498      
Net Income (Loss) (61,286)     (61,286)  
Stock-based compensation 66,500   66,500    
Other comprehensive income (loss) 999       999
Ending balance at Dec. 31, 2023 $ 431,755 $ 16 $ 2,862,552 $ (2,430,837) $ 24
Ending balance (in shares) at Dec. 31, 2023   164,650,219