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REDEEMABLE NONCONTROLLING INTERESTS (Details Textuals) - USD ($)
$ in Thousands
12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Business Acquisition [Line Items]      
Management's estimate of the aggregate redemption amount of all put rights $ 99,512 $ 91,282  
Estimated Redemption Amount of equity interest redeemable at fair value 85,600    
Estimated Redemption Amount of equity interest redeemable based on a multiple of future earnings 13,900    
Payments For Repurchase Of Redeemable Noncontrolling Interest (3,599) $ 0 $ (1,243)
Series of Individually Immaterial Business Acquisitions [Member]      
Business Acquisition [Line Items]      
Aggregate Redemption Amount Puttable 28,200    
Potential Redemption Amount Payable 17,600    
Potential Redemption of Previously Exercised Put Rights $ 4,000    
Subsidiary One [Member] | Electronic Technologies Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 95.90%    
Subsidiary Two [Member] | Flight Support Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 80.10%    
Subsidiary Three [Member] | Flight Support Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 82.30%    
Subsidiary Four [Member] | Electronic Technologies Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 82.50%    
Subsidiary Five [Member] | Flight Support Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 90.10%    
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 19.90%    
Percentage of company total ownership interest 90.10%    
Subsidiary Six [Member] | Electronic Technologies Group [Member]      
Business Acquisition [Line Items]      
Percentage of interest acquired in the subsidiary 78.00%