Restructuring Charges Restructuring Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 17,072	$ 6,613	$ 4,777
Restructuring Reserve [Roll Forward]
Beginning balance	615	335
Restructuring Expense	17,072	6,613
Payments	12,209	6,333
Ending balance	5,478	615	335
Employee costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	4,573	3,030	392
Restructuring Reserve [Roll Forward]
Beginning balance	367	65
Restructuring Expense	4,573	3,030
Payments	2,301	2,728
Ending balance	2,639	367	65
Impairment of fixed assets [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		28,462
Restructuring	0	0	4,085
Legal and professional costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	8,899	1,731	270
Restructuring Reserve [Roll Forward]
Beginning balance	248	270
Restructuring Expense	8,899	1,731
Payments	7,475	1,753
Ending balance	1,672	248	270
Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	3,600	1,852	30
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Restructuring Expense	3,600	1,852
Payments	2,433	1,852
Ending balance	$ 1,167	$ 0	$ 0