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Consolidated Statements of Comprehensive Loss - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement of Comprehensive Income [Abstract]      
Net loss $ (215,975) $ (167,870) $ (281,584)
Other comprehensive (loss) income:      
Unrealized loss on investment securities (789) (235) (253)
Foreign currency translation adjustments 6 7 (8)
Comprehensive loss $ (216,758) $ (168,098) $ (281,845)