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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
PROPERTY, PLANT, AND EQUIPMENT
Property, plant, and equipment consist of the following: 
In thousands
December 31, 2014
 
December 31, 2013
Land
$
1,752

 
$
1,764

Facilities and equipment
647,181

 
855,318

Capital leases
28,680

 
16,133

 
677,613

 
873,215

Accumulated amortization
(464,852
)
 
(395,520
)
 
212,761

 
477,695

Construction in progress
15,150

 
8,578

Property, plant, and equipment, net
$
227,911

 
$
486,273


Rent expense for operating lease agreements was $11.2 million, $16.7 million and $14.1 million for the years ended December 31, 2014, 2013, and 2012, respectively.