Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 86,588	$ 60,035
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(4,661)	(14,455)
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	(63)	(47)
Cash flow hedges:
Deferred gains (losses), net of tax of $(681) and $3,652, respectively	6,453	(12,634)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(850) and $(1,381), respectively	3,854	3,716
Other comprehensive income (loss), net of tax effects	5,583	(23,420)
Comprehensive income	$ 92,171	$ 36,615