Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Revenue:
Products	$ 1,454,991	$ 1,406,532	$ 1,009,239
Services	378,932	335,438	227,397
Total revenue	1,833,923	1,741,970	1,236,636
Cost of goods sold:
Products	868,805	825,969	596,704
Services	240,894	206,855	142,431
Total cost of goods sold	1,109,699	1,032,824	739,135
Gross profit	724,224	709,146	497,501
Operating expenses:
Research and development	364,179	379,862	327,626
Selling and marketing	266,338	251,990	193,515
General and administrative	114,002	126,242	102,692
Acquisition and integration costs	0	42,088	101,379
Amortization of intangible assets	51,697	69,665	99,401
Restructuring costs	7,854	5,781	8,514
Change in fair value of contingent consideration	0	(3,289)	(13,807)
Total operating expenses	804,070	872,339	819,320
Loss from operations	(79,846)	(163,193)	(321,819)
Interest and other income (loss), net	(15,200)	6,022	3,917
Interest expense	(39,653)	(37,926)	(18,619)
Gain on cost method investments	0	7,249	0
Gain on extinguishment of debt	0	0	4,948
Loss before income taxes	(134,699)	(187,848)	(331,573)
Provision for income taxes	9,322	7,673	1,941
Net loss	$ (144,021)	$ (195,521)	$ (333,514)
Basic net loss per common share (in dollars per share)	$ (1.45)	$ (2.04)	$ (3.58)
Diluted net loss per potential common share (in dollars per share)	$ (1.45)	$ (2.04)	$ (3.58)
Weighted average basic common shares outstanding (in shares)	99,341	95,854	93,103
Weighted average dilutive potential common shares outstanding (in shares)	99,341	95,854	93,103