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REVENUE (Disaggregation of Revenue, by Industry) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jan. 31, 2019 | Jan. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | $ 466,146 | $ 404,410
Flight Support Group [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 287,213 | 254,721
Flight Support Group [Member] | Aerospace [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 235,173 | 209,591
Flight Support Group [Member] | Defense and Space [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 41,534 | 34,782
Flight Support Group [Member] | Other Industries [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 10,506 | 10,348
Electronic Technologies Group [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 184,429 | 155,658
Electronic Technologies Group [Member] | Aerospace [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 19,295 | 15,523
Electronic Technologies Group [Member] | Defense and Space [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 115,219 | 97,082
Electronic Technologies Group [Member] | Other Industries [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [2] | 49,915 | 43,053
Corporate And Eliminations [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | $ (5,496) | $ (5,969)
[1] | Principally industrial products.
[2] | Principally other electronics and medical products.

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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