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Property, Plant and Equipment
9 Months Ended
Sep. 29, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment
(Dollars in thousands)
 
 
 
 
September 29, 2013
 
December 30, 2012
Land and buildings
$
71,345

 
$
70,235

Machinery and equipment
420,126

 
408,620

Leasehold improvements and others
8,798

 
8,374

Construction in progress
48,135

 
7,565

 
548,404

 
494,794

Accumulated depreciation
(361,627
)
 
(347,250
)
Property, plant and equipment, net
$
186,777

 
$
147,544



Depreciation expense was $7.3 million and $6.5 million for the thirteen weeks ended September 29, 2013 and September 23, 2012, respectively. Depreciation expense was $21.4 million and $19.5 million for the thirty-nine weeks ended September 29, 2013 and September 23, 2012, respectively.