Earnings Per Share (Schedule Of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data	3 Months Ended																12 Months Ended
	Sep. 30, 2011		Jul. 01, 2011		Apr. 01, 2011		Dec. 31, 2010		Oct. 01, 2010		Jul. 02, 2010		Apr. 02, 2010		Jan. 01, 2010		Sep. 30, 2011		Oct. 01, 2010		Oct. 02, 2009
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 64,209		$ 51,548		$ 49,960		$ 60,868		$ 46,804		$ 34,736		$ 27,744		$ 28,010		$ 226,585		$ 137,294		$ 94,983
Weighted average shares outstanding - basic																	182,879		175,020		167,047	[1]
Effect of dilutive equity based awards																	6,019		5,928		2,093
Dilutive effect of convertible debt																	1,769		1,790		523
Weighted average shares outstanding - diluted																	190,667		182,738		169,663	[1]
Net income per share - basic	$ 0.35	[2]	$ 0.28	[2]	$ 0.27	[2]	$ 0.34	[2]	$ 0.26	[2]	$ 0.20	[2]	$ 0.16	[2]	$ 0.16	[2]	$ 1.24	[2]	$ 0.78	[2]	$ 0.57
Net income per share - diluted	$ 0.34	[2]	$ 0.27	[2]	$ 0.26	[2]	$ 0.32	[2]	$ 0.25	[2]	$ 0.19	[2]	$ 0.15	[2]	$ 0.16	[2]	$ 1.19	[2]	$ 0.75	[2]	$ 0.56

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[2] Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding and included common stock equivalents in each period. Therefore, the sums of the quarters do not necessarily equal the full year earnings per share.