OPERATING SEGMENTS (Last three years, segment information) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		$ 2,968,105	$ 2,208,322	$ 1,865,682
Depreciation		40,278	30,257	27,804
Amortization		89,765	66,076	65,215
Operating income		625,339	496,844	392,900
Capital expenditures		49,434	31,982	36,183
Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Depreciation		18,699	15,656	13,992
Amortization		36,957	24,268	20,648
Operating income		387,297	267,167	151,930
Capital expenditures		22,775	15,588	8,915
Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Depreciation		20,478	13,602	12,839
Amortization		51,296	40,690	43,431
Operating income		285,053	269,473	277,306
Capital expenditures		26,493	15,530	26,496
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		1,101	999	973
Amortization		1,512	1,118	1,136
Operating income		(47,011)	(39,796)	(36,336)
Capital expenditures		166	864	772
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]	(27,302)	(19,365)	(20,577)
Operating Segments [Member] | Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		1,770,185	1,255,212	927,089
Operating Segments [Member] | Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales		$ 1,225,222	$ 972,475	$ 959,170

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