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Property, Plant And Equipment
 12 Months Ended
Sep. 29, 2018
Property, Plant and Equipment [Abstract]  
Property, Plant And Equipment Property, Plant and EquipmentProperty, plant and equipment consists of:
 
 
September 29,
2018
 
September 30,
2017
Land
 
$
33,788

 
$
29,191

Buildings and improvements
 
446,709

 
421,879

Machinery and equipment
 
743,388

 
709,382

Computer equipment and software
 
145,817

 
133,699

Property, plant and equipment, at cost
 
1,369,702

 
1,294,151

Less accumulated depreciation and amortization
 
(816,837
)
 
(771,160
)
Property, plant and equipment, net
 
$
552,865

 
$
522,991