Nature of Operations, Basis of Presentation and Significant Accounting Policies, Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended			36 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Total income (loss) before income taxes	$ 50,300	$ (35,954)	$ 25,753	$ 40,100
Federal income tax blended rate	21.00%	21.00%	23.30%