Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 64,718	$ 55,387	$ 194,129	$ 176,172
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(6)	(10,283)	2,927	(30,061)
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	33	(41)	92	(11)
Cash flow hedges:
Deferred gains (losses), net of tax of $1,828 and $3,112, for the three and nine months ended July 31, 2016, respectively, and of $675 and $6,188 for each of the same periods in fiscal 2015, respectively	(11,693)	599	(21,286)	(13,521)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(1,469) and $(4,640), for the three and nine months ended July 31, 2016, respectively, and of $(926) and $(4,334) for each of the same periods in fiscal 2015, respectively	5,174	2,390	14,087	9,817
Other comprehensive income (loss), net of tax effects	(6,492)	(7,335)	(4,180)	(33,776)
Comprehensive income	$ 58,226	$ 48,052	$ 189,949	$ 142,396