Unaudited Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenue:
Total revenue	$ 964,134	$ 852,970	$ 2,659,842	$ 2,509,613
Cost of revenue:
Amortization of intangible assets	13,718	13,603	40,732	45,927
Total cost of revenue	193,008	186,632	570,141	570,203
Gross margin	771,126	666,338	2,089,701	1,939,410
Operating expenses:
Research and development	322,602	284,804	939,456	846,429
Sales and marketing	156,456	157,109	455,511	471,720
General and administrative	73,516	67,382	204,734	165,794
Amortization of intangible assets	9,931	10,111	29,545	31,211
Restructuring charges	(1,977)	19,338	36,446	33,746
Total operating expenses	560,528	538,744	1,665,692	1,548,900
Operating income	210,598	127,594	424,009	390,510
Other income (expense), net	26,256	5,317	22,584	23,373
Income before income taxes	236,854	132,911	446,593	413,883
Provision (benefit) for income taxes	(16,057)	32,982	(20,299)	42,230
Net income	$ 252,911	$ 99,929	$ 466,892	$ 371,653
Net income per share:
Basic (in USD per share)	$ 1.67	$ 0.67	$ 3.10	$ 2.48
Diluted (in USD per share)	$ 1.62	$ 0.65	$ 3.01	$ 2.42
Shares used in computing per share amounts:
Basic (shares)	151,352	150,123	150,731	149,708
Diluted (shares)	155,973	154,600	155,074	153,859
Time-based products
Revenue:
Total revenue	$ 612,065	$ 537,569	$ 1,758,601	$ 1,649,590
Cost of revenue:
Cost of revenue	118,478	113,533	344,469	346,163
Upfront products
Revenue:
Total revenue	210,931	177,552	491,417	451,466
Maintenance and service
Revenue:
Total revenue	141,138	137,849	409,824	408,557
Cost of revenue:
Cost of revenue	$ 60,812	$ 59,496	$ 184,940	$ 178,113