Unaudited Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Revenue:
Time-based products	$ 503,530	$ 479,285	$ 1,493,991	$ 1,427,740
Upfront products	100,251	66,885	263,310	168,485
Maintenance and service	91,600	69,034	270,935	192,588
Total revenue	695,381	615,204	2,028,236	1,788,813
Cost of revenue:
Products	107,104	92,042	304,982	253,879
Maintenance and service	43,828	23,172	122,618	67,328
Amortization of intangible assets	18,614	24,463	59,720	79,544
Total cost of revenue	169,546	139,677	487,320	400,751
Gross margin	525,835	475,527	1,540,916	1,388,062
Operating expenses:
Research and development	228,663	221,874	664,326	634,751
Sales and marketing	131,520	127,328	395,242	370,874
General and administrative	46,350	42,548	170,654	123,798
Amortization of intangible assets	7,906	7,055	23,806	21,014
Restructuring charges	6,026	0	31,038	2,987
Total operating expenses	420,465	398,805	1,285,066	1,153,424
Operating income	105,370	76,722	255,850	234,638
Other income (expense), net	7,421	8,509	27,322	12,158
Income before income taxes	112,791	85,231	283,172	246,796
Provision (benefit) for income taxes	(3,960)	20,513	26,527	52,667
Net income	$ 116,751	$ 64,718	$ 256,645	$ 194,129
Net income per share:
Basic (in USD per share)	$ 0.78	$ 0.43	$ 1.71	$ 1.28
Diluted (in USD per share)	$ 0.75	$ 0.42	$ 1.66	$ 1.26
Shares used in computing per share amounts:
Basic (shares)	150,214	151,169	150,460	152,129
Diluted (shares)	154,683	153,890	154,787	154,629