OPERATING SEGMENTS (Details) - USD ($) $ in Thousands		3 Months Ended
		Jan. 31, 2022	Jan. 31, 2021
Segment Reporting Information [Line Items]
Revenues		$ 490,343	$ 417,902
Depreciation		7,330	6,755
Amortization		15,892	16,248
Operating income		98,822	80,285
Capital expenditures		8,691	15,509
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	[1]	(4,674)	(4,982)
Depreciation	[1]	246	246
Amortization	[1]	287	274
Operating income	[1]	(9,142)	(5,665)
Capital expenditures	[1]	39	0
Flight Support Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		272,681	199,334
Depreciation		3,718	3,450
Amortization		5,513	5,136
Operating income		52,376	25,822
Capital expenditures		3,582	1,988
Electronic Technologies Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		222,336	223,550
Depreciation		3,366	3,059
Amortization		10,092	10,838
Operating income		55,588	60,128
Capital expenditures		$ 5,070	$ 13,521

[1] Intersegment activity principally consists of net sales from the ETG to the FSG.