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Inventories, Net - Components of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished goods $ 85,700 $ 76,981
Work in process 10,614 13,870
Raw materials and supplies 73,733 82,794
Inventories, net $ 170,047 $ 173,645