Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Revenue:
Time-based products	$ 2,021,812	$ 1,910,902	$ 1,792,212
Upfront products	338,204	248,137	197,325
Maintenance and service	364,864	263,493	252,674
Total revenue	2,724,880	2,422,532	2,242,211
Cost of revenue:
Products	413,203	346,825	303,633
Maintenance and service	164,872	94,019	105,242
Amortization of intangible assets	76,109	102,118	110,045
Total cost of revenue	654,184	542,962	518,920
Gross margin	2,070,696	1,879,570	1,723,291
Operating expenses:
Research and development	908,841	856,705	776,229
Sales and marketing	549,248	502,368	474,407
General and administrative	196,844	165,962	165,097
Amortization of intangible assets	31,614	27,507	26,004
Restructuring charges	36,586	9,633	15,088
Total operating expenses	1,723,133	1,562,175	1,456,825
Operating income	347,563	317,395	266,466
Other income (expense), net	35,535	12,153	15,144
Income (loss) before provision for income taxes	383,098	329,548	281,610
Provision (benefit) for income taxes	246,535	62,722	55,676
Net income	$ 136,563	$ 266,826	$ 225,934
Net income per share:
Basic (in USD per share)	$ 0.91	$ 1.76	$ 1.46
Diluted (in USD per share)	$ 0.88	$ 1.73	$ 1.43
Shares used in computing per share amounts:
Basic (shares)	150,457	152,017	154,957
Diluted (shares)	154,874	154,721	158,065