Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (Parenthetical) - 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]
Reclassification adjustment from AOCI on derivatives, tax	$ (461)	$ (92)	$ (1,098)	$ (126)
Unrealized gain/(loss) on derivative instruments, tax	$ 579	$ 6,002	$ 1,726	$ 5,913