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Inventories (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Summary of Inventories
Inventories consist of the following:
March 31, 2021December 31, 2020
Finished goods$46,675 $39,136 
Work in process41,153 35,477 
Raw materials and supplies83,258 69,129 
$171,086 $143,742