Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Income Tax Disclosure [Abstract]
Domestic									$ (17,821)	$ (3,635)	$ 4,251
Foreign									(2,737)	9,895	2,172
Income before income taxes									20,558	(6,260)	(6,423)
Federal									0	1,998	66
State and Local									113	(157)	386
Foreign									2,289	2,710	2,494
Total current									2,402	4,551	2,946
Federal									(3,265)	(10,692)	856
State and Local									120	700	(329)
Foreign									132	222	3,647
Deferred Income Tax Expense (Benefit)									(3,013)	(9,770)	4,174
Provision (benefit) for income taxes	$ 2,001	$ (973)	$ 1,448	$ (3,087)	$ 4,635	$ (7,014)	$ 218	$ (3,058)	$ (611)	$ (5,219)	$ 7,120