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Inventories (Tables)
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Components of Inventories The components of inventories consist of the following:

 

 

 

March 31,

2019

 

 

December 31,

2018

 

Finished products

 

$

174,224

 

 

$

147,297

 

Raw materials

 

 

15,275

 

 

 

12,598

 

Inventories

 

$

189,499

 

 

$

159,895