OPERATING SEGMENTS OPERATING SEGMENTS, Information by Product Line (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Product Information [Line Items]
Net sales		$ 363,299	$ 356,084	$ 350,648	$ 306,227	$ 328,672	$ 300,370	$ 291,421	$ 268,185	$ 1,376,258	$ 1,188,648	$ 1,132,311
Flight Support Group [Member]
Product Information [Line Items]
Net sales										875,870	809,700	762,801
Flight Support Group [Member] | Aftermarket Replacement Parts [Member]
Product Information [Line Items]
Net sales	[1]									405,108	356,070	327,416
Flight Support Group [Member] | Repair and Overhaul Parts and Services [Member]
Product Information [Line Items]
Net sales	[2]									251,357	258,952	253,717
Flight Support Group [Member] | Specialty Products [Member]
Product Information [Line Items]
Net sales	[3]									219,405	194,678	181,668
Electronic Technologies Group [Member]
Product Information [Line Items]
Net sales										511,272	390,982	379,404
Electronic Technologies Group [Member] | Electronic Components for Defense, Space and Aerospace [Member]
Product Information [Line Items]
Net sales	[4]									371,297	255,095	243,130
Electronic Technologies Group [Member] | Other Electronic Components [Member]
Product Information [Line Items]
Net sales	[5]									139,975	135,887	136,274
Consolidation, Eliminations [Member] | Other Primarily Corporate and Inter Segment [Member]
Product Information [Line Items]
Net sales										$ (10,884)	$ (12,034)	$ (9,894)

[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 to OEMs 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, traveling wave tube amplifiers, microwave power modules, three-dimensional microelectronic and stacked memory products, crashworthy and ballistically self-sealing auxiliary fuel systems, RF and microwave amplifiers, transmitters and receivers, and high performance communications and electronic intercept receivers and tuners.

[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.