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Employee Benefit Plans Employee Benefit Plans (Defined Contribution Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Defined Contribution Plan Disclosure    
Defined contribution plan expense $ 5,079 $ 5,220
United States    
Defined Contribution Plan Disclosure    
Defined contribution plan expense 3,441 3,534
Foreign    
Defined Contribution Plan Disclosure    
Defined contribution plan expense $ 1,638 $ 1,686