Earnings Per Share (Schedule Of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Sep. 28, 2012		Jun. 29, 2012		Mar. 30, 2012		Dec. 30, 2011		Sep. 30, 2011		Jul. 01, 2011		Apr. 01, 2011		Dec. 31, 2010		Sep. 28, 2012		Sep. 30, 2011		Oct. 01, 2010
Earnings Per Share [Abstract]
Net income	$ 61,602		$ 49,317		$ 34,033		$ 57,126		$ 64,209		$ 51,548		$ 49,960		$ 60,868		$ 202,078		$ 226,585		$ 137,294
Weighted average shares outstanding - basic																	185,839		182,879		175,020
Effect of dilutive equity based awards																	5,672		6,019		5,928
Dilutive effect of convertible debt																	335		1,769		1,790
Weighted average shares outstanding - diluted																	191,846		190,667		182,738
Net income per share - basic	$ 0.33	[1]	$ 0.26	[1]	$ 0.18	[1]	$ 0.31	[1]	$ 0.35	[1]	$ 0.28	[1]	$ 0.27	[1]	$ 0.34	[1]	$ 1.09	[1]	$ 1.24	[1]	$ 0.78
Net income per share - diluted	$ 0.32	[1]	$ 0.26	[1]	$ 0.18	[1]	$ 0.30	[1]	$ 0.34	[1]	$ 0.27	[1]	$ 0.26	[1]	$ 0.32	[1]	$ 1.05	[1]	$ 1.19	[1]	$ 0.75

[1] 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.