Accumulated Other Comprehensive Loss Amounts Recognized Into Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 30, 2020	Apr. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 164,740	$ 167,514
Ending Balance	100,818	100,818
Pension and Post Retirement Plan Liability [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(37,593)	(37,883)
Other comprehensive income (loss)	0	0
Amounts reclassified from accumulated other comprehensive loss, net of tax	290	(580)
Net current-period other comprehensive income (loss)	290	580
Ending Balance	(37,303)	(37,303)
Marketable Securities [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	0	0
Other comprehensive income (loss)	0	0
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0
Net current-period other comprehensive income (loss)	0	0
Ending Balance	0	0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(628)
Other comprehensive income (loss)		(356)
Amounts reclassified from accumulated other comprehensive loss, net of tax		(351)
Net current-period other comprehensive income (loss)		(5)
Ending Balance	(633)	(633)
Interest Rate Swap Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(479)
Other comprehensive income (loss)	(330)
Amounts reclassified from accumulated other comprehensive loss, net of tax	176
Net current-period other comprehensive income (loss)	(154)
Ending Balance	(633)	(633)
Accumulated Translation Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(26,624)	(26,515)
Other comprehensive income (loss)	(5,894)	(6,003)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0
Net current-period other comprehensive income (loss)	(5,894)	(6,003)
Ending Balance	(32,518)	(32,518)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(64,696)	(65,026)
Other comprehensive income (loss)	(6,224)	(6,359)
Amounts reclassified from accumulated other comprehensive loss, net of tax	466	(931)
Net current-period other comprehensive income (loss)	(5,758)	(5,428)
Ending Balance	$ (70,454)	$ (70,454)