OPERATING SEGMENTS (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Segment Reporting Information [Line Items]
Revenues		$ 955,395	$ 687,841	$ 1,851,758	$ 1,308,756
Depreciation		11,269	9,762	23,599	18,148
Amortization		31,562	19,962	62,737	38,636
Operating Income (Loss)		209,153	157,090	389,363	286,524
Capital expenditures		12,948	11,075	26,325	21,921
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	[1]	(11,159)	(6,120)	(19,454)	(11,542)
Depreciation	[1]	305	265	609	535
Amortization	[1]	392	274	784	548
Operating Income (Loss)	[1]	(14,986)	(10,801)	(26,195)	(21,513)
Capital expenditures	[1]	112	116	583	220
Flight Support Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		647,232	392,202	1,265,948	763,480
Depreciation		5,442	3,974	11,929	8,152
Amortization		18,447	6,555	36,304	13,286
Operating Income (Loss)		148,876	99,912	284,967	183,521
Capital expenditures		5,982	3,990	12,714	10,643
Electronic Technologies Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		319,322	301,759	605,264	556,818
Depreciation		5,522	5,523	11,061	9,461
Amortization		12,723	13,133	25,649	24,802
Operating Income (Loss)		75,263	67,979	130,591	124,516
Capital expenditures		$ 6,854	$ 6,969	$ 13,028	$ 11,058

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