Property, Plant And Equipment (Narrative) (Details) (USD $)	12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 03, 2009
Property, plant and equipment, net	$ 265,505,000	$ 235,714,000
Amortization of assets held under capital leases	900,000	1,000,000	900,000
Accounts payable related to the purchase of property, plant and equipment	12,300,000	6,300,000
Capital Lease Additions [Member]
Capital lease additions	0	900,000	300,000
San Diego Facility [Member]
Property, plant and equipment, net	$ 10,200,000