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Inventories (Tables)
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Inventories
Inventories are valued at the lower of cost or market. Inventories at September 30, 2015 and December 31, 2014 consisted of the following:
 
September 30,
2015
 
December 31,
2014
Inventories carried at LIFO:
 
 
 
Finished goods
$
45,639

 
$
41,687

Raw materials, production parts and work-in-process
24,019

 
24,458

LIFO reserve
(28,166
)
 
(28,166
)
Total LIFO inventories
41,492

 
37,979

Inventories carried at FIFO:
 

 
 

Finished goods
32,309

 
29,851

Raw materials, production parts and work-in-process
13,792

 
12,681

Inventories held for sale
(4,278
)
 

Total FIFO inventories
41,823

 
42,532

Total inventories
$
83,315

 
$
80,511