Preferred and Common Stock - Narrative (Details) - USD ($)	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Dec. 18, 2019
Equity, Class of Treasury Stock [Line Items]
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Total number of shares repurchased (in shares)	200,000	0	0
2019 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Share repurchase program, authorized amount				$ 150,000,000.0
Share repurchase program, remaining authorized amount	$ 144,900,000