Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010
Revenue:
Time-based license	$ 322,147	$ 286,563	$ 936,518	$ 847,710
Upfront license	19,013	14,650	70,562	47,811
Maintenance and service	45,635	35,716	138,029	109,681
Total revenue	386,795	336,929	1,145,109	1,005,202
Cost of revenue:
License	52,089	43,996	153,758	130,140
Maintenance and service	19,275	14,697	59,796	46,475
Amortization of intangible assets	13,368	8,050	41,511	24,736
Total cost of revenue	84,732	66,743	255,065	201,351
Gross margin	302,063	270,186	890,044	803,851
Operating expenses:
Research and development	122,547	105,649	366,456	319,931
Sales and marketing	90,732	83,812	269,618	242,791
General and administrative	27,052	27,371	86,387	81,937
Amortization of intangible assets	3,553	2,561	11,057	8,339
Total operating expenses	243,884	219,393	733,518	652,998
Operating income	58,179	50,793	156,526	150,853
Other (expense) income, net	(2,212)	(3,046)	9,032	8,109
Income before provision for income taxes	55,967	47,747	165,558	158,962
Provision (benefit) for income taxes	3,885	8,420	(15,864)	(52,700)
Net income	$ 52,082	$ 39,327	$ 181,422	$ 211,662
Net income per share:
Basic	$ 0.36	$ 0.27	$ 1.23	$ 1.43
Diluted	$ 0.35	$ 0.26	$ 1.20	$ 1.40
Shares used in computing per share amounts:
Basic	144,960	148,006	147,479	147,909
Diluted	148,045	151,106	151,598	151,459