Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Valuation Allowances and Reserves [Roll Forward]
Provision for (benefit from) doubtful accounts, product returns and other net sales adjustments	$ 3,161	$ (1,457)	$ (325)
Allowance for Accounts Receivables
Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	10,278	11,735	12,032
Provision for (benefit from) doubtful accounts, product returns and other net sales adjustments	3,161	(1,457)	(325)
Charges Utilized	0	0	28
Balance at End of Period	$ 13,439	$ 10,278	$ 11,735