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Statements of changes in shareholders' equity - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Ordinary shares
Additional paid-in capital
Additional paid-in capital
Cumulative Effect, Period of Adoption, Adjustment
Accumulated other comprehensive income (loss)
Retained earnings (accumulated deficit)
Retained earnings (accumulated deficit)
Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2018     93,254,185          
Beginning balance at Dec. 31, 2018 $ 112,259     $ 757,314   $ (1,400) $ (643,655)  
Share-based compensation to employees 52,416     52,416        
Exercise of options (in shares)     6,206,884          
Exercise of options 59,245     59,245        
Issuance of shares in connection with employee stock purchase plan (in shares)     67,366          
Issuance of shares in connection with employee stock purchase plan 2,467     2,467        
Other comprehensive income (loss), net of tax (benefit) expense (1,367)         (1,367)    
Net income (loss) (7,230)           (7,230)  
Ending balance (in shares) at Dec. 31, 2019     99,528,435          
Ending balance at Dec. 31, 2019 217,790     871,442   (2,767) (650,885)  
Share-based compensation to employees 75,721     75,721        
Exercise of options (in shares)     2,739,150          
Exercise of options 28,428     28,428        
Issuance of shares in connection with employee stock purchase plan (in shares)     66,691          
Issuance of shares in connection with employee stock purchase plan 3,370     3,370        
Conversion feature of convertible note, net $ 132,474     132,474        
Accounting Standards Update [Extensible List] Accounting Standards Update 2020-06 [Member]              
Other comprehensive income (loss), net of tax (benefit) expense $ (1,065)         (1,065)    
Net income (loss) 19,808           19,808  
Ending balance (in shares) at Dec. 31, 2020     102,334,276          
Ending balance at Dec. 31, 2020 476,526 $ (128,972)   1,111,435 $ (132,474) (3,832) (631,077) $ 3,502
Share-based compensation to employees $ 94,900     94,900        
Exercise of options (in shares) 1,016,369   1,585,617          
Exercise of options $ 21,182     21,182        
Issuance of shares in connection with employee stock purchase plan (in shares)     51,370          
Issuance of shares in connection with employee stock purchase plan 4,546     4,546        
Other comprehensive income (loss), net of tax (benefit) expense 663         663    
Net income (loss) (58,351)           (58,351)  
Ending balance (in shares) at Dec. 31, 2021     103,971,263          
Ending balance at Dec. 31, 2021 $ 410,494     $ 1,099,589   $ (3,169) $ (685,926)