CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 03, 2009
Net revenue	$ 830,401	$ 762,784	$ 225,240
Cost of sales	442,492	427,111	136,397
Gross profit	387,909	335,673	88,843
Selling, general and administrative	152,714	130,978	106,175
Research and development	65,135	56,660	53,483
Impairment of goodwill			2,709
Operating expenses	217,849	187,638	162,367
Income (loss) from operations	170,060	148,035	(73,524)
Interest income	648	403	1,106
Interest expense	(8,280)	(8,333)	(8,188)
Gain on extinguishment of debt			3,965
Income (loss) from continuing operations before income tax	162,428	140,105	(76,641)
Provision (benefit) for income taxes from continuing operations	34,818	(2,037)	(13,029)
Income (loss) from continuing operations	127,610	142,142	(63,612)
Income from discontinued operations, net of tax			22,011
Net income (loss)	$ 127,610	$ 142,142	$ (41,601)
Income (loss) per share from continuing operations:
Basic	$ 1.77	$ 2.01	$ (1.02)
Diluted	$ 1.73	$ 1.92	$ (1.02)
Income per share from discontinued operations:
Basic			$ 0.35
Diluted			$ 0.35
Net income (loss) per share:
Basic	$ 1.77	$ 2.01	$ (0.67)
Diluted	$ 1.73	$ 1.92	$ (0.67)
Weighted average shares outstanding:
Basic	71,820	70,012	62,188
Diluted	73,341	73,548	62,188