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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2015
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, 2015
 
December 31, 2014
Land
$
8,287

 
$
1,752

Facilities and equipment
654,585

 
647,181

Capital leases
30,648

 
28,680

 
693,520

 
677,613

Accumulated amortization
(514,509
)
 
(464,852
)
 
179,011

 
212,761

Construction in progress
16,988

 
15,150

Property, plant and equipment, net
$
195,999

 
$
227,911



Rent expense for operating lease agreements was $14.3 million, $11.2 million, and $16.7 million for the years ended December 31, 2015, 2014, and 2013, respectively.