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Product Warranties (Tables)
 3 Months Ended
Dec. 29, 2018
Product Warranties Disclosures [Abstract]  
Summary of Activity in Warranty Accrual Activity in the warranty accrual is summarized as follows:
 
 
Three Months Ended
 
 
December 29,
2018
 
December 30,
2017
Warranty accrual at beginning of period
 
$
25,537

 
$
25,848

Warranties issued during current period
 
3,365

 
4,757

Adjustments to pre-existing warranties
 
(91
)
 
(70
)
Reductions for settling warranties
 
(4,371
)
 
(2,915
)
Foreign currency translation
 
(183
)
 
128

Warranty accrual at end of period
 
$
24,257

 
$
27,748