Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 30, 2011	Dec. 31, 2010
Net revenue	$ 393,740	$ 335,120
Cost of goods sold	221,890	186,582
Gross profit	171,850	148,538
Operating expenses:
Research and development	46,941	38,543
Selling, general and administrative	35,702	30,606
Arbitration costs	7,207	445
Amortization of intangibles	6,312	1,602
Restructuring and other charges (credits)	720	0
Total operating expenses	96,882	71,196
Operating income	74,968	77,342
Interest expense	(481)	(537)
(Loss) gain on early retirement of convertible debt	76	0
Other income (loss), net	99	(69)
Income before income taxes	74,662	76,736
Provision (benefit) for income taxes	17,536	15,868
Net income	$ 57,126	$ 60,868
Earnings per share:
Basic	$ 0.31	$ 0.34
Diluted	$ 0.30	$ 0.32
Weighted average shares:
Basic	183,956	180,706
Diluted	189,682	188,541