Common Stock (Details) - shares shares in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Voting Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Stock issued during period	0
Repurchase of Common Stock (shares)	0	20
Non-Voting Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Amount of non-voting common stock shares authorized by the Company's Board of Directors to be repurchased under the current share repurchase plan	8,000
Date on which the current Non-Voting Common Stock share repurchase program was announced	Jul. 10, 2019
Repurchase of Common Stock (shares)		5,564
Non-Voting Common Stock Current Repurchase Authorization [Member]
Equity, Class of Treasury Stock [Line Items]
Non-voting common stock shares repurchased and retired under the Company's current share repurchase plan during the period	1,600
Non-voting shares remaining to be repurchased and retired under the Company's current share repurchase plan as of the end of the period	6,300
Non-Voting Common Stock Previous Repurchase Authorization [Member]
Equity, Class of Treasury Stock [Line Items]
Non-voting common stock shares repurchased and retired under the Company's previous share repurchase plan during the period	5,800