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INVENTORY VALUATION
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
INVENTORY VALUATION INVENTORIES
Inventories in the Condensed Consolidated Balance Sheets are comprised of the following components:
 
June 30, 2019
 
December 31, 2018
Raw materials
$
99,219

 
$
103,820

Work-in-process
70,066

 
53,950

Finished goods
228,467

 
204,059

Total
$
397,752

 
$
361,829


At June 30, 2019 and December 31, 2018, approximately 36% and 37%, respectively, of total inventories were valued using the last-in, first-out ("LIFO") method. The excess of current cost over LIFO cost was $78,760 and $79,626 at June 30, 2019 and December 31, 2018, respectively.