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OPERATING SEGMENTS (Details 1) - USD ($)
$ in Thousands
Jan. 31, 2019
Oct. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 2,797,014 $ 2,653,396
Other Primarily Corporate and Intersegment [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets 176,456 167,541
Flight Support Group [Member] | Operating Segments [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets 1,098,267 1,093,858
Electronic Technologies Group [Member] | Operating Segments [Member]    
Segment Reporting, Asset Reconciling Item [Line Items]    
Total assets $ 1,522,291 $ 1,391,997