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Guarantees (Tables)
 3 Months Ended
Dec. 30, 2017
Guarantees [Abstract]  
Schedule of Activity Related to Limited Warranty Liability
Below is a table summarizing the activity related to the Company’s limited warranty liability for the three months ended December 30, 2017 and December 31, 2016 (in thousands):
 
 
Three Months Ended
 
 
December 30, 2017
 
December 31, 2016
Reserve balance, beginning of period
 
$
4,756

 
$
6,109

Accruals for warranties issued during the period
 
1,017

 
—

Settlements (in cash or in kind) during the period
 
(1,352
)
 
(1,252
)
Reserve balance, end of period
 
$
4,421

 
$
4,857