Property, Plant And Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Jun. 28, 2014
Capital Leased Assets, Gross	$ 10,871	$ 26,710
Capital Leases, Balance Sheet, Assets by Major Class, Net	3,496	4,509
Amortization of assets held under capital leases	1,900	500	$ 600
Capital Lease Obligations Incurred	2,900	1,200	1,400
Accounts payable related to the purchase of property, plant and equipment	3,500	2,700	7,000
Gain (Loss) on Disposition of Property Plant Equipment	(1,215)	(123)	$ (183)
Guadalajara Facility [Member]
Capital Lease Obligations, Noncurrent	$ 8,400	8,200		$ 8,000
Guadalajara Facility [Member]
Lessee Leasing Arrangements, Capital Lease, Base Lease Term	10 years
Lessee Leasing Arrangements, Capital Lease, Renewal Term	5 years
Guadalajara Facility [Member] | First Five-Year Lease Renewal Option [Member]
Lease Expiration Date	Aug. 01, 2024
Guadalajara Facility [Member] | Second Five-Year Lease Renewal Option [Member]
Lease Expiration Date	Aug. 01, 2029
San Diego Facility [Member]
Capital Leased Assets, Gross		17,900
Capital Leases, Balance Sheet, Assets by Major Class, Net		1,900
Assets Held under Capital Leases [Member] | Guadalajara Facility [Member] | First Five-Year Lease Renewal Option [Member]
Gain (Loss) on Disposition of Property Plant Equipment	$ 4,100
Assets Held under Capital Leases [Member] | Guadalajara Facility [Member] | Second Five-Year Lease Renewal Option [Member]
Gain (Loss) on Disposition of Property Plant Equipment	800
Leasehold Improvements [Member]
Capital lease additions	$ 0	$ 1,400