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REVENUE (Disaggregation of Revenue, by Industry) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 538,813 $ 466,651 $ 1,029,156 $ 884,553
Flight Support Group [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 306,313 230,280 578,994 429,614
Flight Support Group [Member] | Aerospace [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 215,319 163,026 417,724 298,082
Flight Support Group [Member] | Defense and Space [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 77,603 56,254 136,258 110,298
Flight Support Group [Member] | Other Industries [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax [1] 13,391 11,000 25,012 21,234
Electronic Technologies Group [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 237,393 243,089 459,729 466,639
Electronic Technologies Group [Member] | Aerospace [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 20,207 19,724 37,733 37,275
Electronic Technologies Group [Member] | Defense and Space [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 134,414 149,361 265,861 291,453
Electronic Technologies Group [Member] | Other Industries [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax [2] 82,772 74,004 156,135 137,911
Corporate And Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ (4,893) $ (6,718) $ (9,567) $ (11,700)
[1] Principally industrial products.
[2] Principally other electronics and medical products.