Guarantees (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Jun. 28, 2014	Sep. 28, 2013
Product Warranty [Line Items]
Limited warranty liability, beginning balance	$ 5,942	$ 5,145
Accruals for warranties issued during the period	3,724	1,168
Settlements (in cash or in kind) during the period	(3,052)	(371)
Limited warranty liability, ending balance	$ 6,614	$ 5,942
Minimum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months	12
Maximum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months	24