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Inventories (Tables)
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Components of Inventories

The components of inventories consist of the following:

 

 

 

June 30,

2018

 

 

December 31,

2017

 

Finished products

 

$

144,486

 

 

$

107,595

 

Raw materials

 

 

18,694

 

 

 

15,529

 

 

 

$

163,180

 

 

$

123,124