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Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 22,852 $ 21,410
Work in process and semi-finished goods 23,829 21,320
Finished goods 12,123 11,976
Inventory $ 58,804 $ 54,706