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Condensed Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
2.75% convertible senior notes due 2020
Class A Common Stock, Class B Common Stock and Class C Capital Stock
Class A Common Stock, Class B Common Stock and Class C Capital Stock
2.75% convertible senior notes due 2020
Additional Paid-In Capital
Additional Paid-In Capital
2.75% convertible senior notes due 2020
Accumulated Deficit
Accumulated Other Comprehensive Income
Beginning Balance at Dec. 31, 2019 $ 3,435,421   $ 21   $ 4,412,200   $ (977,140) $ 340
Beginning Balance (in shares) at Dec. 31, 2019     209,066,855          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common and capital stock upon exercise of stock options 184,985   $ 1   184,984      
Issuance of common and capital stock upon exercise of stock options (in shares)     6,324,858          
Vesting of restricted stock units (in shares)     1,414,158          
Restricted stock units withheld for tax liability 0              
Restricted stock units withheld for tax liability (in shares)     (6)          
Share-based compensation expense 104,636       104,636      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs 411,523   $ 1   411,522      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs (in shares)     8,800,000          
Equity component of issuances of Notes, net of issuance costs 154,813       154,813      
Settlement of convertible senior notes   $ (21,784)       $ (21,784)    
Settlement of convertible senior notes (in shares)       753,936        
Unwind of capped call transactions (in shares)     (317,865)          
Net income (loss) (247,721)           (247,721)  
Other comprehensive loss 1,185             1,185
Ending Balance at Jun. 30, 2020 4,023,058   $ 23   5,246,371   (1,224,861) 1,525
Ending Balance (in shares) at Jun. 30, 2020     226,041,936          
Beginning Balance at Mar. 31, 2020 3,415,761   $ 22   4,551,866   (1,140,413) 4,286
Beginning Balance (in shares) at Mar. 31, 2020     212,913,139          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common and capital stock upon exercise of stock options 92,783       92,783      
Issuance of common and capital stock upon exercise of stock options (in shares)     3,117,483          
Vesting of restricted stock units (in shares)     775,249          
Restricted stock units withheld for tax liability (in shares)     (6)          
Share-based compensation expense 57,171       57,171      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs 411,523   $ 1   411,522      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs (in shares)     8,800,000          
Equity component of issuances of Notes, net of issuance costs 154,813       154,813      
Settlement of convertible senior notes   (21,784)       (21,784)    
Settlement of convertible senior notes (in shares)       753,936        
Unwind of capped call transactions (in shares)     (317,865)          
Net income (loss) (84,448)           (84,448)  
Other comprehensive loss (2,761)             (2,761)
Ending Balance at Jun. 30, 2020 4,023,058   $ 23   5,246,371   (1,224,861) 1,525
Ending Balance (in shares) at Jun. 30, 2020     226,041,936          
Beginning Balance at Dec. 31, 2020 4,741,816   $ 24   5,880,883   (1,139,255) 164
Beginning Balance (in shares) at Dec. 31, 2020     240,525,920          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common and capital stock upon exercise of stock options $ 75,685       75,685      
Issuance of common and capital stock upon exercise of stock options (in shares) 1,991,460   1,991,460          
Vesting of restricted stock units (in shares)     1,592,564          
Restricted stock units withheld for tax liability $ (126)       (126)      
Restricted stock units withheld for tax liability (in shares)     (641)          
Share-based compensation expense 160,733       160,733      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs 544,558   $ 1   544,557      
Issuance of Class C capital stock in connection with equity offering, net of issuance costs (in shares)     3,163,502          
Settlement of convertible senior notes   59,703     59,703      
Settlement of convertible senior notes (in shares)       1,590,151        
Unwind of capped call transactions (in shares)     (25)          
Net income (loss) 61,605           61,605  
Other comprehensive loss 141             141
Ending Balance at Jun. 30, 2021 5,644,115   $ 25   6,721,435   (1,077,650) 305
Ending Balance (in shares) at Jun. 30, 2021     248,862,931          
Beginning Balance at Mar. 31, 2021 5,510,038   $ 25   6,596,850   (1,087,291) 454
Beginning Balance (in shares) at Mar. 31, 2021     247,307,862          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common and capital stock upon exercise of stock options 14,536       14,536      
Issuance of common and capital stock upon exercise of stock options (in shares)     388,564          
Vesting of restricted stock units (in shares)     779,093          
Restricted stock units withheld for tax liability (2)       (2)      
Restricted stock units withheld for tax liability (in shares)     (19)          
Share-based compensation expense 93,347       93,347      
Settlement of convertible senior notes   $ 16,704       $ 16,704    
Settlement of convertible senior notes (in shares)       387,431        
Net income (loss) 9,641           9,641  
Other comprehensive loss (149)             (149)
Ending Balance at Jun. 30, 2021 $ 5,644,115   $ 25   $ 6,721,435   $ (1,077,650) $ 305
Ending Balance (in shares) at Jun. 30, 2021     248,862,931