XML 26 R15.htm IDEA: XBRL DOCUMENT v3.8.0.1
INVENTORY VALUATION
3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
INVENTORY VALUATION
INVENTORY
Inventories in the Condensed Consolidated Balance Sheet is comprised of the following components:
 
March 31, 2018
 
December 31, 2017
Raw materials
$
115,278

 
$
97,577

Work-in-process
55,309

 
50,695

Finished goods
210,943

 
200,395

Total
$
381,530

 
$
348,667


The valuation of last-in, first-out ("LIFO") method inventories is made at the end of each year based on inventory levels and costs at that time.  Accordingly, interim LIFO calculations are based on management’s estimates of expected year-end inventory levels and costs.  Actual year-end inventory levels and costs may differ from interim LIFO inventory valuations.  At March 31, 2018 and December 31, 2017, approximately 33% and 32% of total inventories were valued using the LIFO method, respectively. The excess of current cost over LIFO cost was $69,553 at March 31, 2018 and $68,641 at December 31, 2017.