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Consolidated Statements of Comprehensive Loss (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement of Comprehensive Income [Abstract]        
Foreign currency translation adjustment, tax impact $ (581) $ 1,203 $ (397) $ 649
Available-for-sale securities, tax impact $ (3) $ (91) $ 0 $ (25)