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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Preferred Stock
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss) Income
Accumulated Deficit
Beginning Balances at Dec. 31, 2021 $ 222,374 $ 123 $ 0 $ 1,441,868 $ (2,266) $ (1,217,351)
Beginning Balances (in shares) at Dec. 31, 2021   122,945 0      
Issuance of common stock upon exercise of warrants 24,670 $ 2   24,668    
Issuance of common stock upon exercise of warrants (Shares)   1,879        
Issuance of common stock upon exercise of stock options 2,150     2,150    
Issuance of common stock upon exercise of stock options (in shares)   287        
Issuance of common stock upon release of restricted stock awards   $ 1   (1)    
Issuance of common stock upon release of restricted stock awards (in shares)   1,246        
Issuance of common stock under Employee Stock Purchase Plan 710     710    
Issuance of common stock under Employee Stock Purchase Plan (in shares)   82        
Stock compensation expense 15,575     15,575    
Total other comprehensive income (Loss) (4,294)       (4,294)  
Net Income (Loss) 161,614         161,614
Ending Balances at Jun. 30, 2022 422,799 $ 126 $ 0 1,484,970 (6,560) (1,055,737)
Ending Balances (in shares) at Jun. 30, 2022   126,439 0      
Beginning Balances at Mar. 31, 2022 287,484 $ 126 $ 0 1,476,013 (4,163) (1,184,492)
Beginning Balances (in shares) at Mar. 31, 2022   126,297 0      
Issuance of common stock upon exercise of stock options 1,028     1,028    
Issuance of common stock upon exercise of stock options (in shares)   132        
Issuance of common stock upon release of restricted stock awards (in shares)   10        
Stock compensation expense 7,929     7,929    
Total other comprehensive income (Loss) (2,397)       (2,397)  
Net Income (Loss) 128,755         128,755
Ending Balances at Jun. 30, 2022 422,799 $ 126 $ 0 1,484,970 (6,560) (1,055,737)
Ending Balances (in shares) at Jun. 30, 2022   126,439 0      
Beginning Balances at Dec. 31, 2022 $ 581,013 $ 128 $ 0 $ 1,510,518 (5,438) (924,195)
Beginning Balances (in shares) at Dec. 31, 2022   127,604 0      
Issuance of common stock upon exercise of stock options (in shares) 1,617 244   1,617    
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings $ (5,963) $ 1   $ (5,964)    
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings (in shares)   850        
Issuance of common stock under Employee Stock Purchase Plan 777     777    
Issuance of common stock under Employee Stock Purchase Plan (in shares)   81        
Stock compensation expense 20,596     20,596    
Total other comprehensive income (Loss) 66       66  
Net Income (Loss) (20,901)         (20,901)
Ending Balances at Jun. 30, 2023 577,205 $ 129 $ 0 1,527,544 (5,372) (945,096)
Ending Balances (in shares) at Jun. 30, 2023   128,779 0      
Beginning Balances at Mar. 31, 2023 563,732 $ 128 $ 0 1,516,331 (4,200) (948,527)
Beginning Balances (in shares) at Mar. 31, 2023   128,472 0      
Issuance of common stock upon exercise of stock options 1,378     1,378    
Issuance of common stock upon exercise of stock options (in shares)   203        
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings (726) $ 1   (727)    
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings (in shares)   104        
Stock compensation expense 10,562     10,562    
Total other comprehensive income (Loss) (1,172)       (1,172)  
Net Income (Loss) 3,431         3,431
Ending Balances at Jun. 30, 2023 $ 577,205 $ 129 $ 0 $ 1,527,544 $ (5,372) $ (945,096)
Ending Balances (in shares) at Jun. 30, 2023   128,779 0