Quarterly Financial Data (Unaudited) (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
Selected Quarterly Financial Information [Abstract]
Revenue, Net	$ 402,316		$ 356,075		$ 325,411		$ 335,120		$ 313,283		$ 275,370		$ 238,058		$ 245,138		$ 1,418,922		$ 1,071,849		$ 802,577
Gross Profit	174,560		156,225		140,981		148,538		136,159		118,266		99,854		102,554		620,304		456,833		318,220
Net Income (Loss) Attributable to Parent	$ 64,209		$ 51,548		$ 49,960		$ 60,868		$ 46,804		$ 34,736		$ 27,744		$ 28,010		$ 226,585		$ 137,294		$ 94,983
Earnings Per Share, Basic	$ 0.35	[1]	$ 0.28	[1]	$ 0.27	[1]	$ 0.34	[1]	$ 0.26	[1]	$ 0.20	[1]	$ 0.16	[1]	$ 0.16	[1]	$ 1.24	[1]	$ 0.78	[1]	$ 0.57
Earnings Per Share, Diluted	$ 0.34	[1]	$ 0.27	[1]	$ 0.26	[1]	$ 0.32	[1]	$ 0.25	[1]	$ 0.19	[1]	$ 0.15	[1]	$ 0.16	[1]	$ 1.19	[1]	$ 0.75	[1]	$ 0.56

[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.