OPERATING SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	$ 216,314	$ 184,486	$ 428,969	$ 358,705
Depreciation and amortization	7,463	4,584	14,438	8,891
Operating income	37,601	32,913	75,233	65,285
Capital expenditures	4,360	2,208	8,148	3,845
Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	141,026	133,804	279,893	254,445
Depreciation and amortization	2,455	2,636	5,141	5,014
Operating income	26,634	23,405	52,141	43,834
Capital expenditures	1,563	1,678	3,218	2,963
Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	76,272	51,372	150,743	105,311
Depreciation and amortization	4,816	1,853	8,847	3,687
Operating income	15,317	13,645	31,522	29,183
Capital expenditures	1,984	527	4,062	878
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	(984)	(690)	(1,667)	(1,051)
Depreciation and amortization	192	95	450	190
Operating income	(4,350)	(4,137)	(8,430)	(7,732)
Capital expenditures	$ 813	$ 3	$ 868	$ 4