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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Balance at beginning of period (in shares) at Dec. 31, 2020   58,201      
Balance at beginning of period at Dec. 31, 2020 $ 421,232 $ 58 $ 702,768 $ (281,594) $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Sale of common stock in a public offering, net of offering costs (in shares)   8,547      
Sale of common stock in a public offering, net of offering costs 593,821 $ 9 593,812    
Issuance of common stock on exercise of stock options and vesting of restricted stock units (in shares)   439      
Issuance of common stock on exercise of stock options and vesting of restricted stock units 2,806   2,806    
Issuance of common stock under ESPP (in shares)   49      
Issuance of common stock under ESPP 1,159   1,159    
Tax portion of vested restricted stock units (6,774)   (6,774)    
Stock-based compensation expense (employee) 3,657   3,657    
Stock-based compensation expense (non-employee) 16   16    
Stock-based compensation expense (ESPP) 182   182    
Net loss (41,868)     (41,868)  
Balance at end of period (in shares) at Mar. 31, 2021   67,236      
Balance at end of period at Mar. 31, 2021 974,231 $ 67 1,297,626 (323,462) 0
Balance at beginning of period (in shares) at Dec. 31, 2021   71,123      
Balance at beginning of period at Dec. 31, 2021 1,096,514 $ 71 1,468,683 (357,157) (15,083)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock on exercise of stock options and vesting of restricted stock units (in shares)   228      
Issuance of common stock on exercise of stock options and vesting of restricted stock units 1,422 $ 0 1,422    
Issuance of common stock under ESPP (in shares)   82      
Issuance of common stock under ESPP 2,115   2,115    
Tax portion of vested restricted stock units (1,447)   (1,447)    
Stock-based compensation expense (employee) 6,230   6,230    
Stock-based compensation expense (non-employee) 11   11    
Stock-based compensation expense (ESPP) 404   404    
Net loss (14,461)     (14,461)  
Other comprehensive loss (5,598)       (5,598)
Balance at end of period (in shares) at Mar. 31, 2022   71,433      
Balance at end of period at Mar. 31, 2022 $ 1,085,190 $ 71 $ 1,477,418 $ (371,618) $ (20,681)