XML 18 R8.htm IDEA: XBRL DOCUMENT v3.21.1
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Statement of Stockholders' Equity [Abstract]        
Cash dividends declared (in dollars per share) $ 0.12 $ 0.12 $ 0.24 $ 0.24