Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Jul. 31, 2020
Cash dividends declared (in dollars per share)	$ 0.10	$ 0.10
Accrual of dividend equivalents (in dollars per share)	$ 0.10	$ 0.10
Cumulative Effect, Period of Adoption, Adjustment
Accounting Standards Update [Extensible List]			Accounting Standards Update 2016-13 [Member]