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Guarantees (Tables)
 9 Months Ended
Jun. 30, 2018
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 nine months ended June 30, 2018 and July 1, 2017 (in thousands):
 
 
Nine Months Ended
 
 
June 30,
2018
 
July 1,
2017
Reserve balance, beginning of period
 
$
4,756

 
$
6,109

Accruals for warranties issued during the period
 
3,660

 
890

Settlements (in cash or in kind) during the period
 
(2,136
)
 
(2,074
)
Reserve balance, end of period
 
$
6,280

 
$
4,925