v3.26.1
SELECTED FINANCIAL STATEMENT INFORMATION (Details Textuals) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Apr. 30, 2026
Oct. 31, 2025
Oct. 31, 2024
Oct. 31, 2022
Selected Financial Statement Information (Details) [Abstract]                
Accrued customer rebates and credits $ 36.3   $ 36.3     $ 30.7    
Total customer rebates and credits deducted within net sales $ 9.3 $ 4.9 $ 20.2 $ 12.8        
80%-owned Subsidiary | HFSC                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 20.00%   20.00%          
Noncontrolling Interest, Ownership Percentage by Parent 80.00%   80.00%          
FY 2015 Acquisition | Existing Holder                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners               19.90%
2019 acquisition | Existing Holder                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners             15.00%  
2019 acquisition | Heico Corporation                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Parent 96.25%   96.25%          
Sherwood | HFSC                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 80.00%   80.00%          
Sherwood | Existing Management | HFSC                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 20.00%   20.00%          
SWA                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 90.00%   90.00%          
SWA | Existing Management                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 10.00%   10.00%          
FY 2006 Acquisition | Existing Holder                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners           19.90%    
FY 2006 Acquisition | Heico Corporation                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Parent 90.05%   90.05%          
FY 2023 Acquisition | Existing Holder                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners         10.00%      
Business Combination, Voting Equity Interest Acquired, Percentage 9.00%   9.00%          
Noncontrolling Interest, Ownership Percentage by Parent 99.00%   99.00%          
Cook Defence Systems | 80%-owned Subsidiary                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 100.00%   100.00%          
William Cook Stanhope | 80%-owned Subsidiary                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 100.00%   100.00%          
William Cook Intermodal | 80%-owned Subsidiary                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 100.00%   100.00%          
CalRamic                
Business Combination [Line Items]                
Business Combination, Voting Equity Interest Acquired, Percentage 90.00%   90.00%          
CalRamic | Existing Management                
Business Combination [Line Items]                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 10.00%   10.00%