FAIR VALUE MEASUREMENTS (Details Textuals) $ in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Apr. 30, 2023 USD ($)	Jul. 31, 2023 USD ($)	Jul. 31, 2023 CAD ($)	Jul. 31, 2022 USD ($)	Jul. 31, 2023 CAD ($)	Oct. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities		$ 56,426				$ 82,803
Accrued Liabilities, Current		315,606				290,199
Change in value of contingent consideration		1,218		$ (4,253)
Business Combination, Reversal of Remaining Contingent Consideration, Liability		$ 9,057		$ 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense
FY2022 Acquisition Subsidiary 1 | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		80.36%			80.36%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 12,100
Total liabilities		$ 5,100
FY2021 Acquisition Subsidiary 1 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		89.00%			89.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 26,700
Total liabilities						18,000
Change in value of contingent consideration		$ 8,900
Business Combination, Reversal of Remaining Contingent Consideration, Liability	$ 9,100
FY2020 Acquisition Subsidiary 1 | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		89.99%			89.99%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 10,200
Total liabilities		8,700
Change in value of contingent consideration		10,000
FY2020 Acquisition Subsidiary 1 | Canada, Dollars | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High					$ 13,500
Total liabilities					$ 11,500
Change in value of contingent consideration			$ 13,500
FY 2017 Acquisition [Member] | Electronic Technologies Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		20,000
Total liabilities		$ 19,800
FY2022 Acquisition Subsidiary 2 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		96.00%			96.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 27,400
Total liabilities		$ 16,400
FY2022 Acquisition Subsidiary 3 | Flight Support Group [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		74.00%			74.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 14,100
Total liabilities		6,400
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		$ 249,000				$ 203,000