Condensed Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (137,134)	$ (2,709)	$ (199,522)	$ (6,295)
Defined benefit pension plans & other post-retirement benefits
Amortization of net actuarial loss	376	289	1,128	865
Income tax (benefit)	(86)	(66)	(258)	(198)
Total defined benefit pension plans & other post-retirement benefits, net of tax	290	223	870	667
Marketable securities
Realized gain	0	0	0	18
Total marketable securities, net of tax	0	0	0	18
Derivatives and hedging
Unrealized loss on interest rate swap agreements	(10)	(301)	(368)	(1,030)
Income tax benefit (provision)	(62)	58	(60)	195
Reclassification adjustments for settlement of derivatives included in net income (loss)	283	51	634	181
Change in fair value of derivative instruments, net of tax	211	(192)	206	(654)
Foreign currency translation adjustments
Foreign currency translation gain (loss)	13,671	(1,940)	7,668	(3,713)
Unrealized gain (loss) on foreign currency translation	13,671	(1,940)	7,668	(3,713)
Comprehensive loss, net	$ (122,962)	$ (4,618)	$ (190,778)	$ (9,977)