Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 28, 2012		Sep. 30, 2011		Oct. 01, 2010
Net revenue	$ 1,568,581		$ 1,418,922		$ 1,071,849
Cost of goods sold	901,484		798,618		615,016
Gross profit	667,097		620,304		456,833
Operating expenses:
Research and development	212,534		168,637		134,140
Selling, general and administrative	158,433		137,238		117,853
Amortization of intangibles	32,744		16,742		6,136
Restructuring and other charges (credits)	7,752		2,363		(1,040)
Total operating expenses	411,463		324,980		257,089
Operating income	255,634		295,324		199,744
Interest expense	(667)		(1,936)		(4,246)
Gain (loss) on early retirement of convertible debt	139		0		(79)
Other (loss) income, net	(130)		498		(345)
Income before income taxes	254,976		293,886		195,074
Provision for income taxes	52,898		67,301		57,780
Net income	$ 202,078		$ 226,585		$ 137,294
Earnings per share:
Basic (in dollars per share)	$ 1.09	[1]	$ 1.24	[1]	$ 0.78
Diluted (in dollars per share)	$ 1.05	[1]	$ 1.19	[1]	$ 0.75
Weighted average shares:
Basic (in shares)	185,839		182,879		175,020
Diluted (in shares)	191,846		190,667		182,738

[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.