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Restructuring Charges (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Company's accrual for restructuring activities:-        
Beginning Restructuring Accrual Balance, as of December 31, 2018     $ 9,184  
Restructuring Charges $ 650 $ 4,570 2,719 $ 7,335
Restructuring Cash Payments     (7,422)  
Impact of foreign currency on restructuring reserve     (319)  
Ending Restructuring Accrual Balance, as of September 30, 2019 $ 4,162   $ 4,162