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Inventories
12 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
Inventories
 
The components of inventories consisted of the following:
 
(in thousands) 
 
December 31,
 
2014
 
2013
Raw materials
$
97,732

 
$
81,338

In-process products
19,496

 
18,475

Finished products
99,317

 
97,915

 
$
216,545

 
$
197,728