Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 153,514	$ (3,691)
Other comprehensive income (loss):
Change in foreign currency translation adjustment	5,383	21,080
Cash flow hedges:
Deferred gains (losses), net of tax of $(1,591) and $(3,419), respectively	5,467	13,013
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(1,236) and $1,325, respectively	4,475	(5,306)
Other comprehensive income (loss), net of tax effects	15,325	28,787
Comprehensive income	$ 168,839	$ 25,096