EARNINGS PER SHARE - Reconciliation of Shares Used to Calculate Basic and Diluted Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Class A Common Stock
Class of Stock [Line Items]
Basic shares (shares)	26,441,986	26,257,943	26,363,123	26,166,612
Assumed conversion of restricted shares (shares)	609	0	54	0
Diluted shares (shares)	26,442,595	26,257,943	26,363,177	26,166,612
Class B Common Stock
Class of Stock [Line Items]
Basic shares (shares)	22,000,000.0	22,000,000.0	22,000,000.0	22,000,000.0
Diluted shares (shares)	22,000,000.0	22,000,000.0	22,000,000.0	22,000,000.0
Basic and diluted shares (shares)	22,007,725	22,007,725	22,007,725	22,007,725