XML 79 R67.htm IDEA: XBRL DOCUMENT v3.21.1
Stock-Based Benefit Plans (Details Textual) - USD ($)
$ in Millions
Apr. 30, 2021
Oct. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unamortized value of outstanding stock-based compensation awards $ 21.7 $ 15.9