Condensed Consolidated Statement 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	$ 1,981	$ 8,349	$ 10,777	$ 21,417
Recognized gain	0	318	593	806
Actuarial net gain (loss)	0	(816)	(683)	(1,962)
Asset net gain (loss)	0	268	391	649
Income taxes	0	86	(114)	191
Total defined benefit pension plans & other post retirement benefits, net of tax	0	(144)	187	(316)
Unrealized gain (loss) on marketable securities	(258)	750	(552)	854
Income taxes	90	(134)	193	(171)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	(365)	0	(365)
Total marketable securities, net of tax	(168)	251	(359)	318
Unrealized gain (loss) on interest rate swap agreements	147	(457)	(1,651)	(1,360)
Income taxes	(56)	175	625	517
Change in fair value of derivative instruments, net of tax	91	(282)	(1,026)	(843)
Unrealized loss on foreign currency translation	(1,062)	(1,433)	(8,648)	(1,433)
Comprehensive income, net	$ 842	$ 6,741	$ 931	$ 19,143