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Inventories
 12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES
 
      Inventories valued at LIFO represented 45% and 37% of total inventory for the years ended December 31, 2015 and 2014, respectively. The excess of current costs over LIFO-valued inventories was $8,712,000 and $10,230,000 on December 31, 2015 and December 31, 2014, respectively. Inventories consisted of the following on a cost basis, net of reserves:
 
 
December 31,
(in thousands)
 
2015
 
2014
Finished goods and parts
 
$
129,995

 
$
112,197

Work in process
 
9,561

 
18,635

Raw materials
 
11,202

 
35,256

 
 
$
150,758

 
$
166,088