Property, Plant And Equipment (Narrative) (Details) (USD $)	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Property, plant and equipment, net	$ 325,061,000	$ 265,191,000
Amortization of assets held under capital leases	600,000	800,000	900,000
Accounts payable related to the purchase of property, plant and equipment	10,900,000	11,500,000	12,300,000
Capital Lease Additions [Member]
Capital lease additions	1,400,000	100,000	0.00
San Diego Facility [Member]
Property, plant and equipment, net	$ 6,500,000