Condensed Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (58,707)	$ 1,112	$ (62,387)	$ (3,586)
Defined benefit pension plans & other post-retirement benefits
Amortization of net actuarial loss	376	288	752	576
Income tax (benefit)	(86)	(66)	(172)	(132)
Total defined benefit pension plans & other post-retirement benefits, net of tax	290	222	580	444
Marketable securities
Realized gain	0	0	0	18
Total marketable securities, net of tax	0	0	0	18
Derivatives and hedging
Unrealized (loss) gain on interest rate swap agreements	(376)	(158)	(358)	(729)
Income tax benefit (provision)	46	26	2	137
Reclassification adjustments for settlement of derivatives included in net income (loss)	176	44	351	130
Change in fair value of derivative instruments, net of tax	(154)	(88)	(5)	(462)
Foreign currency translation adjustments
Foreign currency translation gain (loss)	(5,894)	(4,478)	(6,003)	(1,773)
Unrealized gain (loss) on foreign currency translation	(5,894)	(4,478)	(6,003)	(1,773)
Comprehensive loss, net	$ (64,465)	$ (3,232)	$ (67,815)	$ (5,359)