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Product Warranties (Summary Of Activity In Warranty Accrual) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 02, 2016
Apr. 04, 2015
Apr. 02, 2016
Apr. 04, 2015
Product Warranties Disclosures [Abstract]        
Warranty accrual at beginning of period $ 19,391 $ 18,326 $ 18,660 $ 19,953
Warranties issued during current period 2,925 2,234 5,343 3,699
Adjustments to pre-existing warranties (215) (452) (349) (1,584)
Reductions for settling warranties (1,795) (1,918) (3,048) (3,156)
Foreign currency translation 92 (572) (208) (1,294)
Warranty accrual at end of period $ 20,398 $ 17,618 $ 20,398 $ 17,618