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Condensed Consolidated Statements of Stockholders’ Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive (Loss)/Income
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021   98,381      
Beginning balance at Dec. 31, 2021 $ 316,185 $ 10 $ 964,965 $ (714) $ (648,076)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 5,381   5,381    
Common stock issued upon exercise of stock options (in shares)   15      
Common stock issued upon exercise of stock options 3   3    
Common stock issued upon release of restricted stock units (in shares)   371      
Restricted stock surrendered for taxes (in shares)   0      
Foreign currency translation adjustments 14     14  
Unrealized gain (loss) on marketable securities (723)     (723)  
Net loss (37,908)       (37,908)
Ending balance (in shares) at Mar. 31, 2022   98,767      
Ending balance at Mar. 31, 2022 282,952 $ 10 970,349 (1,423) (685,984)
Beginning balance (in shares) at Dec. 31, 2021   98,381      
Beginning balance at Dec. 31, 2021 316,185 $ 10 964,965 (714) (648,076)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Foreign currency translation adjustments (50)        
Unrealized gain (loss) on marketable securities (1,189)        
Net loss (121,800)        
Ending balance (in shares) at Sep. 30, 2022   99,728      
Ending balance at Sep. 30, 2022 208,337 $ 10 980,156 (1,953) (769,876)
Beginning balance (in shares) at Mar. 31, 2022   98,767      
Beginning balance at Mar. 31, 2022 282,952 $ 10 970,349 (1,423) (685,984)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 4,942   4,942    
Common stock issued upon release of restricted stock units (in shares)   5      
Common stock issued under employee stock purchase plan (in shares)   499      
Common stock issued under employee stock purchase plan 362   362    
Foreign currency translation adjustments (34)     (34)  
Unrealized gain (loss) on marketable securities (339)     (339)  
Net loss (43,761)       (43,761)
Ending balance (in shares) at Jun. 30, 2022   99,271      
Ending balance at Jun. 30, 2022 244,122 $ 10 975,653 (1,796) (729,745)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 4,503   4,503    
Common stock issued upon release of restricted stock units (in shares)   457      
Foreign currency translation adjustments (30)     (30)  
Unrealized gain (loss) on marketable securities (127)     (127)  
Net loss (40,131)       (40,131)
Ending balance (in shares) at Sep. 30, 2022   99,728      
Ending balance at Sep. 30, 2022 208,337 $ 10 980,156 (1,953) (769,876)
Beginning balance (in shares) at Dec. 31, 2022   100,117      
Beginning balance at Dec. 31, 2022 181,518 $ 10 985,651 (1,531) (802,612)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 4,563   4,563    
Common stock issued upon release of restricted stock units (in shares)   456      
Foreign currency translation adjustments (7)     (7)  
Unrealized gain (loss) on marketable securities 739     739  
Net loss (29,056)       (29,056)
Ending balance (in shares) at Mar. 31, 2023   100,573      
Ending balance at Mar. 31, 2023 157,757 $ 10 990,214 (799) (831,668)
Beginning balance (in shares) at Dec. 31, 2022   100,117      
Beginning balance at Dec. 31, 2022 $ 181,518 $ 10 985,651 (1,531) (802,612)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Common stock issued upon exercise of stock options (in shares) 1        
Foreign currency translation adjustments $ (24)        
Unrealized gain (loss) on marketable securities 1,003        
Net loss (93,451)        
Ending balance (in shares) at Sep. 30, 2023   101,027      
Ending balance at Sep. 30, 2023 102,714 $ 10 999,319 (552) (896,063)
Beginning balance (in shares) at Mar. 31, 2023   100,573      
Beginning balance at Mar. 31, 2023 157,757 $ 10 990,214 (799) (831,668)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 4,469   4,469    
Common stock issued upon release of restricted stock units (in shares)   2      
Common stock issued under employee stock purchase plan (in shares)   418      
Common stock issued under employee stock purchase plan 246   246    
Foreign currency translation adjustments (5)     (5)  
Unrealized gain (loss) on marketable securities 198     198  
Net loss (31,510)       (31,510)
Ending balance (in shares) at Jun. 30, 2023   100,993      
Ending balance at Jun. 30, 2023 131,155 $ 10 994,929 (606) (863,178)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation expense 4,389   4,389    
Common stock issued upon exercise of stock options (in shares)   1      
Common stock issued upon exercise of stock options 1   1    
Common stock issued upon release of restricted stock units (in shares)   33      
Foreign currency translation adjustments (12)     (12)  
Unrealized gain (loss) on marketable securities 66     66  
Net loss (32,885)       (32,885)
Ending balance (in shares) at Sep. 30, 2023   101,027      
Ending balance at Sep. 30, 2023 $ 102,714 $ 10 $ 999,319 $ (552) $ (896,063)