Goodwill And Intangible Assets (Components Of Acquired Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (150,722)	$ (121,114)
Customer-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	10 years
Gross Carrying Amount	179,383	159,861
Accumulated Amortization	(80,953)	(64,420)
Program-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	18 years
Gross Carrying Amount	79,631	64,887
Accumulated Amortization	(13,976)	(9,163)
Technology-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	9 years
Gross Carrying Amount	67,969	61,276
Accumulated Amortization	(35,676)	(28,876)
Marketing-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	9 years
Gross Carrying Amount	29,327	23,669
Accumulated Amortization	(16,145)	(13,828)
Contract-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	3 years
Gross Carrying Amount	3,354	3,238
Accumulated Amortization	(3,354)	(2,156)
Artistic-Related [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	10 years
Gross Carrying Amount	25	25
Accumulated Amortization	(25)	(25)
Acquired Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-Average Life (years)	12 years
Gross Carrying Amount	359,689	312,956
Accumulated Amortization	$ (150,129)	$ (118,468)