Goodwill and Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 28, 2012	Sep. 28, 2012
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, Gross Carrying Amount	$ 175,695	$ 175,695
Total intangible assets, Accumulated Amortization	(89,841)	(81,685)
Total intangible assets, Net Carrying Amount	85,854	94,010
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	40 months
Gross Carrying Amount	78,710	78,710
Accumulated Amortization	(39,500)	(36,242)
Net Carrying Amount	39,210	42,468
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	42 months
Gross Carrying Amount	89,366	89,366
Accumulated Amortization	(46,220)	(42,266)
Net Carrying Amount	43,146	47,100
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	13 months
Gross Carrying Amount	6,050	6,050
Accumulated Amortization	(4,121)	(3,177)
Net Carrying Amount	1,929	2,873
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Trademarks	1,569	1,569
Nonamortizing intangible assets, Gross Carrying Amount	$ 1,569	$ 1,569