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Property, Plant and Equipment
3 Months Ended
Dec. 27, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
9.
Property, Plant and Equipment
The gross carrying amount and accumulated depreciation of property, plant and equipment at the end of each period was as follows:
 
December 27, 2013
 
September 27, 2013
Property, plant and equipment, gross
$
1,896.3

 
$
1,873.7

Less: accumulated depreciation
(899.0
)
 
(876.3
)
Property, plant and equipment, net
$
997.3

 
$
997.4



Depreciation expense for property, plant and equipment was $26.3 million and $24.8 million during the three months ended December 27, 2013 and December 28, 2012, respectively. Depreciation expense included depreciation on demonstration equipment of $1.1 million and $0.8 million for the three months ended December 27, 2013 and December 28, 2012, respectively. Demonstration equipment was included within other assets on the unaudited condensed consolidated balance sheets.