Debt, Capital Lease Obligations And Other Financing (Schedule Of Debt And Capital Lease Obligations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012	Sep. 27, 2014 Term Loans New Credit Facility [Member] Rate	Sep. 28, 2013 Term Loans New Credit Facility [Member]	Apr. 04, 2008 Term Loans Prior Credit Facility [Member]	Sep. 27, 2014 Senior Notes [Member] Rate	Sep. 28, 2013 Senior Notes [Member]	Sep. 27, 2014 Capital Lease Obligations [Member] Rate	Sep. 28, 2013 Capital Lease Obligations [Member] Rate
Borrowings under term loan					$ 75,000	$ 150,000
Borrowings under senior notes, expiring on June 15, 2018, interest rate of 5.20%							175,000	175,000
Capital Lease Obligations, Noncurrent	8,000
Capital lease obligations for equipment and facilities	8,414	11,347
Less: current portion	(4,368)	(3,574)
Long-term debt and capital lease obligations, net of current portion	262,046	257,773
LIBOR rate plus				1.125%
Debt Instrument, Interest Rate, Stated Percentage							5.20%
Debt, Weighted Average Interest Rate									8.80%	9.30%
Proceeds from Issuance of Debt	281,000	30,000	89,082
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	$ (285,263)	$ (41,018)	$ (107,354)