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Debt, Capital Lease Obligations And Other Financing (Schedule Of Debt And Capital Lease Obligations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011 Term Loans [Member]	Oct. 01, 2011 Senior Notes [Member]	Apr. 21, 2011 Senior Notes [Member]	Oct. 01, 2011 Capital Lease Obligations [Member]	Oct. 02, 2010 Capital Lease Obligations [Member]
Borrowings under term loan, expiring on April 4, 2013, interest rate of base rate or LIBOR rate plus 1.00%	$ 97,500	$ 112,500
Borrowings under senior notes, expiring on June 15, 2018, interest rate of 5.20%	175,000
Capital lease obligations for equipment and facilities located in San Diego and Xiamen, China, expiring on various dates through 2017; weighted average interest rates of 10.3% and 10.2% for fiscal 2011 and 2010, respectively.	15,142	17,375
Less: current portion	(17,350)	(17,409)
Long-term debt and capital lease obligations, net of current portion	$ 270,292	$ 112,466
Debt instrument, maturity date			Apr. 04, 2013	Jun. 15, 2018
Debt instrument interest rate				5.20%	5.20%
Debt instrument, interest rate terms	LIBOR rate plus 1.50%
Borrowings under term loan, LIBOR rate plus	1.50%		1.50%
Debt instrument, weighted average interest rates						10.30%	10.20%