Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 55,387	$ 65,656	$ 176,172	$ 196,669
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(10,283)	1,713	(30,061)	(9,502)
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	(41)	0	(11)	0
Cash flow hedges:
Deferred gains (losses), net of tax of $675 and $6,188, for the three and nine months ended July 31, 2015, respectively, and of $311 and $502 for each of the same periods in fiscal 2014, respectively	599	(831)	(13,521)	1,658
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(926) and $(4,334), for the three and nine months ended July 31, 2015, respectively, and of $(205) and $(1,784), for each of the same periods in fiscal 2014, respectively	2,390	(2,540)	9,817	(4,973)
Other comprehensive income (loss), net of tax effects	(7,335)	(1,658)	(33,776)	(12,817)
Comprehensive income	$ 48,052	$ 63,998	$ 142,396	$ 183,852