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Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished goods $ 110,933 $ 134,467
Work-in-process 19,308 17,602
Raw materials 67,778 73,629
Total Inventories $ 198,019 $ 225,698