OPERATING SEGMENTS (Last three years, segment information) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		$ 2,208,322	$ 1,865,682	$ 1,787,009
Depreciation		30,257	27,804	27,067
Amortization		66,076	65,215	61,494
Operating income		496,844	392,900	376,648
Capital expenditures		31,982	36,183	22,940
Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		1,255,212	927,089	924,812
Depreciation		15,656	13,992	14,339
Amortization		24,268	20,648	19,957
Operating income		267,167	151,930	143,051
Capital expenditures		15,588	8,915	10,843
Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		972,475	959,170	874,987
Depreciation		13,602	12,839	11,722
Amortization		40,690	43,431	40,553
Operating income		269,473	277,306	258,814
Capital expenditures		15,530	26,496	12,025
Other Primarily Corporate and Inter Segment [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Depreciation		999	973	1,006
Amortization		1,118	1,136	984
Operating income		(39,796)	(36,336)	(25,217)
Capital expenditures		864	772	72
Consolidation, Eliminations [Member] | Other Primarily Corporate and Inter Segment [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	[1]	$ (19,365)	$ (20,577)	$ (12,790)

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