FAIR VALUE MEASUREMENTS (Details Textuals) $ in Thousands, € in Millions	9 Months Ended
	Jul. 31, 2017 USD ($)	Jul. 31, 2016 EUR (€)	Jul. 31, 2016 USD ($)	Jul. 31, 2017 EUR (€)	Jul. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities					$ 14,041	$ 18,881
Payment for Contingent Consideration Liability, Financing Activities	$ 7,039		$ 6,960
Assets held within irrevocable trusts and classified within other assets					117,276	93,202
Related liabilities of deferred compensation plans, specified as other long-term liabilities					116,100	92,600
Aggregate LCP Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held within irrevocable trusts and classified within other assets					112,000	88,500
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities					0	0
Assets held within irrevocable trusts and classified within other assets					109,713	86,054
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities					14,041	18,881
Assets held within irrevocable trusts and classified within other assets					0	0
Business Combinations [Abstract]
Accrued Liabilities, Current					7,014
Flight Support Group [Member] | FY 2015 Acquisition [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities					12,700
Payment for Contingent Consideration Liability, Financing Activities			$ 6,800
Flight Support Group [Member] | Euro Member Countries, Euro | FY 2015 Acquisition [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities | €				€ 10.8
Contingent Consideration Arrangements, Per Year Amount | €				6.1
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | €				€ 18.3
Payment for Contingent Consideration Liability, Financing Activities | €		€ 6.1
Electronic Technologies Group [Member] | FY 2016 Acquisition [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities					1,300
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High					2,000
Fair Value Assumptions, Expected Term	5 years
Payment for Contingent Consideration Liability, Financing Activities	$ 300
Aggregate LCP Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Related liabilities of deferred compensation plans, specified as other long-term liabilities					$ 110,800	$ 87,900