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Inventory
 12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventory Inventory
The Company’s inventory included the following for the years ended December 31:
 
2019
 
2018
Finished goods
$
150,259

 
$
203,350

Work-in-progress
17,065

 
21,478

Raw materials
73,385

 
68,656

Manufacturing and maintenance supplies
10,471

 
10,544

Total inventory
$
251,180

 
$
304,028