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