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Product Warranties (Summary Of Activity In Warranty Accrual) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Product Warranties Disclosures [Abstract]        
Warranty accrual at beginning of period $ 20,398 $ 17,618 $ 18,660 $ 19,953
Warranties issued during current period 2,609 2,358 7,952 6,057
Adjustments to pre-existing warranties (879) (391) (1,227) (1,976)
Reductions for settling warranties (1,898) (2,306) (4,946) (5,462)
Foreign currency translation (350) 322 (559) (971)
Warranty accrual at end of period $ 19,880 $ 17,601 $ 19,880 $ 17,601