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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Total
Balances at Dec. 31, 2019 $ 216 $ 4,044,490 $ (15,542) $ (1,430,758) $ 2,598,406
Increase (Decrease) in Stockholders' Equity          
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units 1 14,618     14,619
Issuance of shares of Common Stock for services rendered   145     145
Stock compensation   42,758     42,758
Other comprehensive income (loss)     2,435   2,435
Net income (loss)       (720,642) (720,642)
Balances at Mar. 31, 2020 217 4,102,011 (13,107) (2,151,400) 1,937,721
Balances at Dec. 31, 2019 216 4,044,490 (15,542) (1,430,758) 2,598,406
Increase (Decrease) in Stockholders' Equity          
Other comprehensive income (loss)         3,119
Net income (loss)         (430,344)
Balances at Jun. 30, 2020 218 4,217,911 (12,423) (1,861,102) 2,344,604
Balances at Mar. 31, 2020 217 4,102,011 (13,107) (2,151,400) 1,937,721
Increase (Decrease) in Stockholders' Equity          
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units and shares of Common Stock under the ESPP 1 69,193     69,194
Issuance of shares of Common Stock for services rendered   139     139
Issuance of shares of Common Stock upon conversion of Convertible Senior Notes   162     162
Stock compensation   46,406     46,406
Other comprehensive income (loss)     684   684
Net income (loss)       290,298 290,298
Balances at Jun. 30, 2020 218 4,217,911 (12,423) (1,861,102) 2,344,604
Balances at Dec. 31, 2020 219 4,352,864 (15,360) (1,726,455) 2,611,268
Increase (Decrease) in Stockholders' Equity          
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units 1 20,027     20,028
Issuance of shares of Common Stock for services rendered   108     108
Stock compensation   47,903     47,903
Other comprehensive income (loss)     (4,998)   (4,998)
Net income (loss)       53,535 53,535
Balances at Mar. 31, 2021 220 4,420,902 (20,358) (1,672,920) 2,727,844
Balances at Dec. 31, 2020 219 4,352,864 (15,360) (1,726,455) 2,611,268
Increase (Decrease) in Stockholders' Equity          
Other comprehensive income (loss)         (2,913)
Net income (loss)         202,991
Balances at Jun. 30, 2021 220 4,477,378 (18,273) (1,523,464) 2,935,861
Balances at Mar. 31, 2021 220 4,420,902 (20,358) (1,672,920) 2,727,844
Increase (Decrease) in Stockholders' Equity          
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units and shares of Common Stock under the ESPP   11,016     11,016
Issuance of shares of Common Stock for services rendered   109     109
Stock compensation   45,351     45,351
Other comprehensive income (loss)     2,085   2,085
Net income (loss)       149,456 149,456
Balances at Jun. 30, 2021 $ 220 $ 4,477,378 $ (18,273) $ (1,523,464) $ 2,935,861