XML 32 R16.htm IDEA: XBRL DOCUMENT v3.10.0.1
PROPERTY, PLANT & EQUIPMENT
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT & EQUIPMENT
PROPERTY, PLANT & EQUIPMENT
The major classes of depreciable assets are as follows:
 
 
December 31,
In thousands
 
2018
 
2017
Machinery and equipment
 
$
749,782

 
$
728,257

Buildings and improvements
 
248,111

 
259,561

Land and improvements
 
38,657

 
38,228

Property, plant and equipment
 
1,036,550

 
1,026,046

Less: accumulated depreciation
 
(472,813
)
 
(452,074
)
Total
 
$
563,737

 
$
573,972


 
The estimated useful lives of property, plant and equipment are as follows:
 
Years
Land improvements
10 to 20
Building and improvements
20 to 40
Machinery and equipment
3 to 15

 
Depreciation expense was $66.4 million, $66.7 million, and $47.1 million for 2018, 2017 and 2016, respectively.