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Guarantees (Tables)
 6 Months Ended
Mar. 31, 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 six months ended March 31, 2018 and April 1, 2017 (in thousands):
 
 
Six Months Ended
 
 
March 31, 2018
 
April 1, 2017
Reserve balance, beginning of period
 
$
4,756

 
$
6,109

Accruals for warranties issued during the period
 
2,131

 
869

Settlements (in cash or in kind) during the period
 
(1,579
)
 
(1,799
)
Reserve balance, end of period
 
$
5,308

 
$
5,179