Guarantees (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Jul. 04, 2015 USD ($) mo	Sep. 27, 2014 USD ($)
Product Warranty [Line Items]
Limited warranty liability, beginning balance	$ 6,803	$ 5,942
Accruals for warranties issued during the period	1,414	4,331
Settlements (in cash or in kind) during the period	(2,468)	(3,470)
Limited warranty liability, ending balance	$ 5,749	$ 6,803
Minimum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months | mo	12
Maximum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months | mo	24