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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories are stated at the lower of cost, primarily determined on the first-in, first-out (FIFO) method, or market. The cost of manufactured inventory includes raw material, labor and overhead. Inventories consist of the following (in thousands):
 
 
 
September 30,
 
December 31,
 
 
 
2016
 
2015
 
Finished goods
 
$
96,036
 
$
67,260
 
Raw materials and components
 
 
60,013
 
 
65,790
 
Work in progress
 
 
26,725
 
 
18,201
 
Aftermarket parts
 
 
8,378
 
 
8,714
 
Used trailers
 
 
3,997
 
 
7,017
 
 
 
$
195,149
 
$
166,982