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OPERATING SEGMENTS OPERATING SEGMENTS, Information by Product Line (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2018 | Jul. 31, 2018 | Apr. 30, 2018 | Jan. 31, 2018 | Oct. 31, 2017 | Jul. 31, 2017 | Apr. 30, 2017 | Jan. 31, 2017 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 476,884 | $ 465,825 | $ 430,602 | $ 404,410 | $ 421,224 | $ 391,500 | $ 368,657 | $ 343,432 | $ 1,777,721 | $ 1,524,813 | $ 1,376,258
Flight Support Group [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 1,097,937 | 967,540 | 875,870
Flight Support Group [Member] | Aftermarket Replacement Parts [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [1] |  |  |  |  |  |  |  |  | 582,562 | 489,644 | 405,108
Flight Support Group [Member] | Repair and Overhaul Parts and Services [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [2] |  |  |  |  |  |  |  |  | 286,454 | 270,482 | 251,357
Flight Support Group [Member] | Specialty Products [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [3] |  |  |  |  |  |  |  |  | 228,921 | 207,414 | 219,405
Electronic Technologies Group [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 701,827 | 574,261 | 511,272
Electronic Technologies Group [Member] | Electronic Components for Defense, Space and Aerospace [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [4] |  |  |  |  |  |  |  |  | 547,088 | 420,991 | 371,297
Electronic Technologies Group [Member] | Other Electronic Components [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [5] |  |  |  |  |  |  |  |  | 154,739 | 153,270 | 139,975
Consolidation, Eliminations [Member] | Other Primarily Corporate and Inter Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | $ (22,043) | $ (16,988) | $ (10,884)
[1] | (1) Includes various jet engine and aircraft component replacement parts.
[2] | (2) Includes primarily the sale of parts consumed in various repair and overhaul services on selected jet engine and aircraft components, avionics, instruments, composites and flight surfaces of commercial and military aircraft.
[3] | (3) Includes primarily the sale of specialty components such as thermal insulation blankets, renewable/reusable insulation systems, advanced niche components, complex composite assemblies, and expanded foil mesh.
[4] | (4) Includes various component parts such as electro-optical infrared simulation and test equipment, electro-optical laser products, electro-optical, microwave and other power equipment, high-speed interface products, power conversion products, underwater locator beacons, emergency locator transmission beacons, traveling wave tube amplifiers, microwave power modules, three-dimensional microelectronic and stacked memory products, crashworthy and ballistically self-sealing auxiliary fuel systems, radio frequency (RF) and microwave amplifiers, transmitters and receivers, high performance communications and electronic intercept receivers and tuners and high performance active antenna systems.
[5] | (5) Includes various component parts such as electromagnetic and radio interference shielding, high voltage interconnection devices, high voltage advanced power electronics, harsh environment connectivity products and custom molded cable assemblies.

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