Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Restructuring Reserve [Roll Forward]
Beginning Balance			$ 5,478	$ 615
Restructuring Charges	$ 2,196	$ 3,905	13,397	11,371
Payments for Restructuring			(11,570)	(9,761)
Ending Balance	7,305	2,225	7,305	2,225
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs				41,859
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance			2,639	367
Restructuring Charges	2,049	947	4,013	2,377
Payments for Restructuring			(3,947)	(2,744)
Ending Balance	2,705	0	2,705	0
Legal and Professional Expenses [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance			1,672	248
Restructuring Charges	128	2,608	9,013	6,769
Payments for Restructuring			(6,141)	(4,792)
Ending Balance	4,544	2,225	4,544	2,225
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance			1,167	0
Restructuring Charges	19	350	371	2,225
Payments for Restructuring			(1,482)	(2,225)
Ending Balance	$ 56	$ 0	$ 56	$ 0