XML 19 R6.htm IDEA: XBRL DOCUMENT v3.22.0.1
Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares
 3 Months Ended 6 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Oct. 31, 2020
Jan. 31, 2022
Jan. 31, 2021
Cash dividends declared (in dollars per share) $ 0.10 $ 0.10   $ 0.20 $ 0.20
Accrual of dividend equivalents (in dollars per share) $ 0.10 $ 0.10   $ 0.20 $ 0.20
Cumulative Effect, Period of Adoption, Adjustment          
Accounting Standards Update [Extensible List]     Accounting Standards Update 2016-13 [Member]