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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Common Stock
Additional Paid-In Capital
Additional Paid-In Capital
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Loss
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2020     129,344,000          
Beginning balance at Dec. 31, 2020 $ 609,635 $ (378,138) $ 129 $ 1,030,577 $ (465,006) $ 1,530 $ (422,601) $ 86,868
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock in connection with equity offering, net of offering costs (in shares)     10,975,000          
Issuance of common stock upon exercise of stock options and ESPP 1,091,466   $ 11 1,091,455        
Equity component on conversions of 2023 notes and 2025 notes (236,920)     (236,920)        
Issuance of common stock upon conversions of 2023 notes (in shares)     2,983,000          
Issuance of common stock upon conversions of 2023 notes 235,521   $ 3 235,518        
Net proceeds from capped call related to conversions of 2023 notes and 2025 notes 67,769     67,769        
Issuance of common stock upon exercise of stock options and ESPP (in shares)     164,000          
Issuance of common stock upon exercise of stock options and ESPP 5,265     5,265        
Net share settlement of equity awards (in shares)     1,155,000          
Net share settlement of equity awards (74,640)   $ 2 (74,642)        
Share-based compensation expense 52,839     52,839        
Other comprehensive loss (2,500)         (2,500)    
Net income (32,415)           (32,415)  
Ending balance (in shares) at Jun. 30, 2021     144,621,000          
Ending balance at Jun. 30, 2021 1,337,882   $ 145 1,706,855   (970) (368,148)  
Beginning balance (in shares) at Mar. 31, 2021     141,317,000          
Beginning balance at Mar. 31, 2021 1,243,343   $ 141 1,645,352   (1,238) (400,912)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Equity component on conversions of 2023 notes and 2025 notes (225,615)     (225,615)        
Issuance of common stock upon conversions of 2023 notes (in shares)     2,857,000          
Issuance of common stock upon conversions of 2023 notes 224,284   $ 3 224,281        
Net proceeds from capped call related to conversions of 2023 notes and 2025 notes 44,192     44,192        
Issuance of common stock upon exercise of stock options and ESPP (in shares)     120,000          
Issuance of common stock upon exercise of stock options and ESPP 4,919     4,919        
Net share settlement of equity awards (in shares)     327,000          
Net share settlement of equity awards (15,465)   $ 1 (15,466)        
Share-based compensation expense 29,192     29,192        
Other comprehensive loss 268         268    
Net income 32,764           32,764  
Ending balance (in shares) at Jun. 30, 2021     144,621,000          
Ending balance at Jun. 30, 2021 $ 1,337,882   $ 145 1,706,855   (970) (368,148)  
Beginning balance (in shares) at Dec. 31, 2021 136,951,956   136,952,000          
Beginning balance at Dec. 31, 2021 $ 1,106,917   $ 137 1,449,305   (5,334) (337,191)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Repurchases of common stock (in shares)     (11,562,000)          
Repurchases of common stock (300,450)   $ (12) (300,438)        
Issuance of common stock in connection with equity offering, net of offering costs (in shares)     319,000          
Issuance of common stock upon exercise of stock options and ESPP 4,557     4,557        
Net share settlement of equity awards (in shares)     635,000          
Net share settlement of equity awards (10,220)   $ 1 (10,221)        
Share-based compensation expense 68,303     68,303        
Other comprehensive loss (63,534)         (63,534)    
Net income $ 13,218           13,218  
Ending balance (in shares) at Jun. 30, 2022 126,343,933   126,344,000          
Ending balance at Jun. 30, 2022 $ 818,791   $ 126 1,211,506   (68,868) (323,973)  
Beginning balance (in shares) at Mar. 31, 2022     126,682,000          
Beginning balance at Mar. 31, 2022 808,521   $ 127 1,176,765   (36,922) (331,449)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Repurchases of common stock (in shares)     (837,000)          
Repurchases of common stock 0   $ (1) 1        
Issuance of common stock upon exercise of stock options and ESPP (in shares)     265,000          
Issuance of common stock upon exercise of stock options and ESPP 4,102     4,102        
Net share settlement of equity awards (in shares)     234,000          
Net share settlement of equity awards (2,754)     (2,754)        
Share-based compensation expense 33,392     33,392        
Other comprehensive loss (31,946)         (31,946)    
Net income $ 7,476           7,476  
Ending balance (in shares) at Jun. 30, 2022 126,343,933   126,344,000          
Ending balance at Jun. 30, 2022 $ 818,791   $ 126 $ 1,211,506   $ (68,868) $ (323,973)