Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 252,911	$ 99,929	$ 466,892	$ 371,653
Other comprehensive income (loss):
Change in foreign currency translation adjustment	18,102	(2,123)	14,099	(67)
Cash flow hedges:
Deferred gains (losses), net of tax of $(4,169) and $(1,823), for the three and nine months ended July 31, 2020, respectively, and of $(464) and $(2,178) for each of the same periods in fiscal 2019, respectively.	12,399	(1,070)	3,965	4,844
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(134) and $(262), for the three and nine months ended July 31, 2020, respectively, and of $(702) and $(2,988) for each of the same periods in fiscal 2019, respectively.	709	3,260	1,563	11,747
Other comprehensive income (loss), net of tax effects	31,210	67	19,627	16,524
Comprehensive income	$ 284,121	$ 99,996	$ 486,519	$ 388,177