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Consolidated Statements of Stockholders' Deficit - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Balance at Dec. 31, 2020 $ (19,262) $ 1,769 $ 1,002,408 $ 3 $ (1,023,442)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (64,284)       (64,284)
Other comprehensive income 179     179  
Employee stock purchase plan sales, net 723 2 721    
Exercise of stock options, net 2,177 6 2,171    
Stock-based compensation expense 5,479   5,479    
Balance at Mar. 31, 2021 (74,988) 1,777 1,010,779 182 (1,087,726)
Balance at Dec. 31, 2020 (19,262) 1,769 1,002,408 3 (1,023,442)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (107,482)        
Balance at Jun. 30, 2021 (106,075) 1,787 1,022,975 87 (1,130,924)
Balance at Mar. 31, 2021 (74,988) 1,777 1,010,779 182 (1,087,726)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (43,198)       (43,198)
Other comprehensive income (95)     (95)  
Exercise of stock options, net 4,574 10 4,564    
Stock-based compensation expense 7,632   7,632    
Balance at Jun. 30, 2021 (106,075) 1,787 1,022,975 87 (1,130,924)
Balance at Dec. 31, 2021 (106,986) 1,843 1,098,498 177 (1,207,504)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (74,196)       (74,196)
Other comprehensive income 9     9  
Employee stock purchase plan sales, net 1,504 1 1,503    
Exercise of stock options, net 5,853 12 5,841    
Stock-based compensation expense 9,601   9,601    
Balance at Mar. 31, 2022 (164,215) 1,856 1,115,443 186 (1,281,700)
Balance at Dec. 31, 2021 (106,986) 1,843 1,098,498 177 (1,207,504)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (133,055)        
Balance at Jun. 30, 2022 (213,232) 1,859 1,125,453 15 (1,340,559)
Balance at Mar. 31, 2022 (164,215) 1,856 1,115,443 186 (1,281,700)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (58,859)       (58,859)
Other comprehensive income (171)     (171)  
Exercise of warrants 3 3      
Exercise of stock options, net 145   145    
Stock-based compensation expense 9,865   9,865    
Balance at Jun. 30, 2022 $ (213,232) $ 1,859 $ 1,125,453 $ 15 $ (1,340,559)