EARNINGS PER SHARE - Additional Information (Details) - shares	9 Months Ended
Jul. 31, 2020	Oct. 31, 2019
Class A Common Stock
Class of Stock [Line Items]
Percentage of shares outstanding used in two class method calculation	40.00%
Class B Common Stock
Class of Stock [Line Items]
Percentage of shares outstanding used in two class method calculation	60.00%
Board Of Director Authorized
Class of Stock [Line Items]
Number of shares authorized to be purchased (shares)	4,703,487	4,703,487
Stock Repurchase Committee Authorized
Class of Stock [Line Items]
Repurchase of common stock (shares)	0

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration