v3.21.2
Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common stock and additional paid-in capital:
Accumulated deficit:
Accumulated deficit:
Cumulative Effect, Period of Adoption, Adjustment
Accumulated other comprehensive income (loss):
Common stock
Beginning balances at Dec. 31, 2019 $ 379,412 $ 622,697 $ (243,299) $ (268) $ 14  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation expense   38,076        
Exercise of stock options   9,196        
Shares acquired to settle the exercise of stock options   (628)        
Proceeds from issuance of common stock, net of issuance costs   311,321        
Equity component of early extinguishment of convertible notes   0        
Settlement of convertible note hedges   0        
Settlement of warrants   0        
Net loss (99,799)   (99,799)      
Other comprehensive income (loss)         (52)  
Ending balances at Sep. 30, 2020 637,258 980,662 (343,366)   (38)  
Common stock, beginning balance (in shares) at Dec. 31, 2019           48,386
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Shares acquired to settle exercise of stock options (in shares)           (7)
Exercise of stock options (in shares)           462
Shares issued for the vesting of restricted stock awards (in shares)           796
Proceeds from issuance of common stock, net of issuance costs (in shares)           4,235
Common stock, ending balance (in shares) at Sep. 30, 2020           53,872
Beginning balances at Jun. 30, 2020 647,492 964,190 (316,646) 0 (52)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation expense   12,011        
Exercise of stock options   4,388        
Shares acquired to settle the exercise of stock options   (31)        
Proceeds from issuance of common stock, net of issuance costs   104        
Equity component of early extinguishment of convertible notes   0        
Settlement of convertible note hedges   0        
Settlement of warrants   0        
Net loss (26,720)   (26,720)      
Other comprehensive income (loss)         14  
Ending balances at Sep. 30, 2020 637,258 980,662 (343,366)   (38)  
Common stock, beginning balance (in shares) at Jun. 30, 2020           53,433
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Shares acquired to settle exercise of stock options (in shares)           0
Exercise of stock options (in shares)           170
Shares issued for the vesting of restricted stock awards (in shares)           269
Proceeds from issuance of common stock, net of issuance costs (in shares)           0
Common stock, ending balance (in shares) at Sep. 30, 2020           53,872
Beginning balances at Dec. 31, 2020 643,364 1,024,583 (381,187) 0 (32)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation expense   41,796        
Exercise of stock options   5,823        
Shares acquired to settle the exercise of stock options   (200)        
Proceeds from issuance of common stock, net of issuance costs   0        
Equity component of early extinguishment of convertible notes   (28,454)        
Settlement of convertible note hedges   26,295        
Settlement of warrants   (19,655)        
Net loss (87,365)   (87,365)      
Other comprehensive income (loss)         125  
Ending balances at Sep. 30, 2021 $ 581,729 1,050,188 (468,552)   93  
Common stock, beginning balance (in shares) at Dec. 31, 2020 55,562         55,562
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Shares acquired to settle exercise of stock options (in shares)           (2)
Exercise of stock options (in shares)           297
Shares issued for the vesting of restricted stock awards (in shares)           959
Proceeds from issuance of common stock, net of issuance costs (in shares)           0
Common stock, ending balance (in shares) at Sep. 30, 2021 56,816         56,816
Beginning balances at Jun. 30, 2021 $ 597,495 1,034,526 (436,969) $ 0 (62)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation expense   14,404        
Exercise of stock options   1,258        
Shares acquired to settle the exercise of stock options   0        
Proceeds from issuance of common stock, net of issuance costs   0        
Equity component of early extinguishment of convertible notes   0        
Settlement of convertible note hedges   0        
Settlement of warrants   0        
Net loss (31,583)   (31,583)      
Other comprehensive income (loss)         155  
Ending balances at Sep. 30, 2021 $ 581,729 $ 1,050,188 $ (468,552)   $ 93  
Common stock, beginning balance (in shares) at Jun. 30, 2021           56,464
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Shares acquired to settle exercise of stock options (in shares)           0
Exercise of stock options (in shares)           88
Shares issued for the vesting of restricted stock awards (in shares)           264
Proceeds from issuance of common stock, net of issuance costs (in shares)           0
Common stock, ending balance (in shares) at Sep. 30, 2021 56,816         56,816