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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Additional Paid-in Capital
Additional Paid-in Capital
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Income (Loss)
Class A Non-voting Common Stock
Class A Non-voting Common Stock
Common Stock
Class B Common Stock
Class B Common Stock
Common Stock
Class C Common Stock
Class C Common Stock
Common Stock
Balance, beginning of period, shares at Dec. 31, 2019               1,160,127   24,522   231,147
Balance, beginning of period at Dec. 31, 2019   $ 9,205,256   $ (6,945,930) $ (780) $ 573   $ 12       $ 2
Stock-based compensation expense   172,049                    
Shares issued in connection with exercise of stock options under stock-based compensation plans, shares               396   2    
Shares issued in connection with exercise of stock options under stock-based compensation plans   3,130                    
Issuance of voting/non-voting common stock for vesting of restricted stock units and restricted stock awards, shares               21,759        
Conversion of stock to voting/non-voting common stock, shares               245   (245)    
Issuance of Class C voting common stock for settlement of restricted stock awards net, Shares                       1,636
Net loss $ (305,936)     (305,936)     $ (249,240)   $ (5,223)   $ (51,473)  
Other comprehensive income (loss), net of tax $ (3,469)         (3,469)            
Balance, end of period, shares at Mar. 31, 2020 1,439,589             1,182,527   24,279   232,783
Balance, end of period at Mar. 31, 2020 $ 2,124,907 9,380,435   (7,252,646)   (2,896)   $ 12       $ 2
Balance, beginning of period, shares at Dec. 31, 2020               1,248,010   23,696   231,627
Balance, beginning of period at Dec. 31, 2020 2,329,976 10,200,141 $ (664,021) (7,891,542) $ 95,031 21,363   $ 12       $ 2
Stock-based compensation expense   237,073                    
Shares issued in connection with exercise of stock options under stock-based compensation plans, shares               314   5    
Shares issued in connection with exercise of stock options under stock-based compensation plans   4,453                    
Issuance of voting/non-voting common stock for vesting of restricted stock units and restricted stock awards, shares               15,348        
Issuance of non-voting common stock for vesting of restricted stock units and restricted stock awards, net               $ 1        
Conversion of stock to voting/non-voting common stock, shares               61   (61)    
Net loss (286,882)     (286,882)     $ (238,107)   $ (4,523)   $ (44,252)  
Other comprehensive income (loss), net of tax $ (9,453)         (9,453)            
Balance, end of period, shares at Mar. 31, 2021 1,519,000             1,263,733   23,640   231,627
Balance, end of period at Mar. 31, 2021 $ 1,706,178 $ 9,777,646   $ (8,083,393)   $ 11,910   $ 13       $ 2