Restructuring Restructuring (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 30, 2018 USD ($)	Apr. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 1,483	$ 2,997
Restructuring and Related Cost, Cost Incurred to Date	7,774	7,774
Restructuring and Related Cost, Expected Cost Remaining	9,200	9,200
Restructuring Reserve [Roll Forward]
Beginning Balance		335
Restructuring Expense		2,997
Payments		2,416
Ending Balance	916	916
Legal and Professional Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	281	1,112
Restructuring Reserve [Roll Forward]
Beginning Balance		270
Restructuring Expense		1,112
Payments		1,155
Ending Balance	227	227
Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	968	1,579
Restructuring Reserve [Roll Forward]
Beginning Balance		65
Restructuring Expense		1,579
Payments		955
Ending Balance	689	689
Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	234	306
Restructuring Reserve [Roll Forward]
Beginning Balance		0
Restructuring Expense		306
Payments		306
Ending Balance	$ 0	$ 0