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Product Warranties
 3 Months Ended
Dec. 31, 2016
Product Warranties Disclosures [Abstract]  
Product Warranties
Product Warranties
In the ordinary course of business, we warrant our products against defects in design, materials and workmanship typically over periods ranging from twelve to sixty months. We determine warranty reserves needed by product line based on historical experience and current facts and circumstances. Activity in the warranty accrual is summarized as follows:
 
 
Three Months Ended
 
 
December 31,
2016
 
January 2,
2016
Warranty accrual at beginning of period
 
$
21,363

 
$
18,660

Warranties issued during current year
 
3,414

 
2,418

Adjustments to pre-existing warranties
 
(265
)
 
(134
)
Reductions for settling warranties
 
(1,044
)
 
(1,253
)
Foreign currency translation
 
(585
)
 
(300
)
Warranty accrual at end of period
 
$
22,883

 
$
19,391