OPERATING SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	$ 292,223	$ 291,030	$ 282,232	$ 266,826	$ 287,426	$ 267,133	$ 237,708	$ 216,490	$ 1,132,311	$ 1,008,757	$ 897,347
Depreciation and amortization									47,757	36,790	30,656
Operating income									203,388	183,590	163,294
Capital expenditures									16,410	18,328	15,262
Total assets	1,489,214				1,533,015				1,489,214	1,533,015	1,192,846
Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales									762,801	665,148	570,325
Depreciation and amortization									19,843	14,614	10,451
Operating income									136,480	122,058	103,943
Capital expenditures									9,437	10,190	7,045
Total assets	676,824				679,839				676,824	679,839	487,188
Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales									379,404	350,033	331,598
Depreciation and amortization									27,106	21,392	19,365
Operating income									88,914	83,063	77,438
Capital expenditures									6,327	7,748	7,248
Total assets	703,144				759,807				703,144	759,807	636,660
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									(9,894)	(6,424)	(4,576)
Depreciation and amortization									808	784	840
Operating income									(22,006)	(21,531)	(18,087)
Capital expenditures									646	390	969
Total assets	$ 109,246				$ 93,369				$ 109,246	$ 93,369	$ 68,998