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Note 2 - Stock Compensation (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-Based Payment Arrangement, Expense $ 4.2 $ 6.9 $ 7.9 $ 11.0
Share-Based Payment Arrangement, Expense, after Tax $ 3.1 $ 5.1 $ 5.7 $ 8.1
Performance Shares [Member] | The 2025 LTIP [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Post-Vesting Hold Period (Year)     2 years  
Performance Shares [Member] | Payable in Shares of Company Stock [Member] | The 2025 LTIP [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     100.00%