Unaudited Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Revenue:
Total revenue	$ 861,327	$ 836,242	$ 1,695,708	$ 1,656,643
Cost of revenue:
Amortization of intangible assets	13,845	14,881	27,014	32,324
Total cost of revenue	184,265	190,679	377,133	383,571
Gross margin	677,062	645,563	1,318,575	1,273,072
Operating expenses:
Research and development	302,571	290,299	616,854	561,625
Sales and marketing	146,200	158,652	299,055	314,611
General and administrative	62,474	56,351	131,218	98,412
Amortization of intangible assets	10,250	10,316	19,614	21,100
Restructuring charges	29,672	14,443	38,423	14,408
Total operating expenses	551,167	530,061	1,105,164	1,010,156
Operating income	125,895	115,502	213,411	262,916
Other income (expense), net	(15,729)	18,415	(3,672)	18,056
Income before income taxes	110,166	133,917	209,739	280,972
Provision (benefit) for income taxes	246	15,707	(4,242)	9,248
Net income	$ 109,920	$ 118,210	$ 213,981	$ 271,724
Net income per share:
Basic (in USD per share)	$ 0.73	$ 0.79	$ 1.42	$ 1.82
Diluted (in USD per share)	$ 0.71	$ 0.77	$ 1.39	$ 1.77
Shares used in computing per share amounts:
Basic (shares)	150,597	149,712	150,421	149,500
Diluted (shares)	154,379	153,904	154,471	153,383
Time-based products
Revenue:
Total revenue	$ 590,097	$ 558,305	$ 1,146,536	$ 1,112,021
Cost of revenue:
Cost of revenue	108,207	116,010	225,991	232,630
Upfront products
Revenue:
Total revenue	129,765	143,401	280,486	273,914
Maintenance and service
Revenue:
Total revenue	141,465	134,536	268,686	270,708
Cost of revenue:
Cost of revenue	$ 62,213	$ 59,788	$ 124,128	$ 118,617