XML 77 R65.htm IDEA: XBRL DOCUMENT v3.21.1
Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Oct. 31, 2020
Income Taxes (Textual) [Abstract]          
Income tax provision $ 41,960 $ 26,443 $ 72,866 $ 35,499  
Effective Income Tax Rate Reconciliation, Percent 24.70% 25.90% 24.50% 21.10%  
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount       $ 6,900  
Unrecognized Tax Benefits $ 6,800   $ 6,800    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible     During the next 12 months, it is reasonably possible that our unrecognized tax benefits will change, but we are not able to provide a range of such change.    
State and Local Jurisdiction [Member]          
Income Taxes (Textual) [Abstract]          
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent     5.80%   5.60%