Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 432,518	$ 136,563	$ 266,826
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(18,882)	14,293	5,808
Change in unrealized gains (losses) on investments, net of tax of $0, for fiscal years 2017 and 2016	0	(19)	47
Cash flow hedges:
Deferred gains (losses), net of tax of $4,675, $(4,380), and $4,372 for fiscal years 2018, 2017 and 2016, respectively	(17,428)	20,760	(25,767)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $2,207, $(168), and $(6,253) for fiscal years 2018, 2017 and 2016, respectively	(10,888)	3,564	20,710
Other comprehensive income (loss), net of tax effects	(47,198)	38,598	798
Comprehensive income	$ 385,320	$ 175,161	$ 267,624