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Property, Plant and Equipment, Net
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net
The major classes of property, plant and equipment consist of the following:
In thousands
December 31,
2014
 
December 28,
2013
Land
$
54,919

 
$
50,780

Buildings and land improvements
240,515

 
179,821

Machinery, equipment and other
755,590

 
569,157

Construction in progress
49,887

 
28,181

Subtotal
1,100,911

 
827,939

Less: Accumulated depreciation
(230,681
)
 
(175,159
)
Total
$
870,230

 
$
652,780


Depreciation expense was $101.8 million, $64.4 million and $58.1 million for the fiscal years ended December 31, 2014, December 28, 2013 and December 29, 2012, respectively.