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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]    
Net loss $ (286,882) $ (305,936)
Other comprehensive income (loss), net of tax    
Unrealized gain (loss) on marketable securities, net of tax 116 3,694
Foreign currency translation (9,569) (7,163)
Total other comprehensive income (loss), net of tax (9,453) (3,469)
Total comprehensive income (loss) $ (296,335) $ (309,405)