OPERATING SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Segment Reporting Information [Line Items]
Net sales	$ 291,421us-gaap_SalesRevenueNet	$ 282,232us-gaap_SalesRevenueNet	$ 559,606us-gaap_SalesRevenueNet	$ 549,058us-gaap_SalesRevenueNet
Depreciation and amortization	12,237	12,089	23,141	24,139
Operating income	55,788us-gaap_OperatingIncomeLoss	49,171us-gaap_OperatingIncomeLoss	102,194us-gaap_OperatingIncomeLoss	99,556us-gaap_OperatingIncomeLoss
Capital expenditures	5,206	3,495	9,460	7,485
Flight Support Group [Member]
Segment Reporting Information [Line Items]
Net sales	202,775	194,892	384,832	376,477
Depreciation and amortization	6,349	4,943	11,161	9,863
Operating income	37,545	36,886	68,248	69,089
Capital expenditures	3,863	2,231	6,477	4,256
Electronic Technologies Group [Member]
Segment Reporting Information [Line Items]
Net sales	90,995	89,741	180,216	177,233
Depreciation and amortization	5,686	6,946	11,578	13,871
Operating income	22,206	18,136	41,624	41,040
Capital expenditures	1,226	1,051	2,857	2,759
Other Primarily Corporate and Intersegment [Member]
Segment Reporting Information [Line Items]
Net sales	(2,349)	(2,401)	(5,442)	(4,652)
Depreciation and amortization	202	200	402	405
Operating income	(3,963)	(5,851)	(7,678)	(10,573)
Capital expenditures	$ 117	$ 213	$ 126	$ 470

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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