Restructuring and Impairment Costs Restructuring and Impairment Accrual Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 142	$ 0
Asset Impairment Charges	0	3,160	$ 0
Restructuring and Impairment Charges	1,691	11,280	0
Restructuring Reserve, Accrual Adjustment	(1,833)	(11,138)
Restructuring Reserve	0	142	0
Fixed Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	0
Asset Impairment Charges	0	3,160
Restructuring Reserve, Accrual Adjustment	0	(3,160)
Restructuring Reserve	0	0	0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	142	0
Restructuring Charges	144	3,180
Restructuring Reserve, Accrual Adjustment	(286)	(3,038)
Restructuring Reserve	0	142	0
Lease Obligations and Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	0
Restructuring Charges	1,547	4,940
Restructuring Reserve, Accrual Adjustment	(1,547)	(4,940)
Restructuring Reserve	$ 0	$ 0	$ 0