ACQUISITIONS (Details Textuals) - USD ($) $ in Thousands |
3 Months Ended |
9 Months Ended |
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
| Business Combination [Line Items] |
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|
|
|
| Revenues |
$ 1,413,050
|
$ 1,147,591
|
$ 3,967,345
|
$ 3,275,633
|
| Business Combination, Pro Forma Information, Pro Forma Revenue |
$ 1,418,700
|
$ 1,233,100
|
$ 4,099,100
|
$ 3,520,700
|
| HFSC | 80%-owned Subsidiary |
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|
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| Business Combination [Line Items] |
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|
|
|
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
20.00%
|
|
20.00%
|
|
| Noncontrolling Interest, Ownership Percentage by Parent |
80.00%
|
|
80.00%
|
|
| Rockmart | Heico Electronic Technologies Corp |
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| Business Combination [Line Items] |
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|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
100.00%
|
|
100.00%
|
|
| Business Combination, Name of Acquiree |
|
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Axillon Aerospace’s Fuel Containment Business
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| Business Combination, Description of Acquiree |
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renamed Rockmart Fuel Containment, LLC (“Rockmart”). Rockmart designs and manufactures advanced fuel containment solutions, primarily for military fixed- and rotary-wing aircraft.
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| Ethos | HFSC |
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| Business Combination [Line Items] |
|
|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
100.00%
|
|
100.00%
|
|
| Business Combination, Name of Acquiree |
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EthosEnergy Accessories and Components, LLC and 100% of the stock of EthosEnergy Accessories and Components, Limited (collectively, “Ethos”)
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| Business Combination, Description of Acquiree |
|
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Ethos provides repair solutions for engine components and accessories for various aeroderivative, aerospace, and defense engine platforms.
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| Stock Issued During Period, Shares, Acquisitions |
|
|
95,483
|
|
| Sherwood | HFSC |
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| Business Combination [Line Items] |
|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
80.00%
|
|
80.00%
|
|
| Business Combination, Name of Acquiree |
|
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Sherwood Avionics and Accessories, Inc.
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| Business Combination, Description of Acquiree |
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Sherwood is an FAA and EASA Part 145 repair station specializing in the maintenance, repair and overhaul of complex, mission-critical mechanical and electro-mechanical components for defense and select commercial aviation platforms.
|
|
| Stock Issued During Period, Shares, Acquisitions |
|
|
86,474
|
|
| Sherwood | HFSC | Existing Management |
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|
|
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| Business Combination [Line Items] |
|
|
|
|
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
20.00%
|
|
20.00%
|
|
| SWA |
|
|
|
|
| Business Combination [Line Items] |
|
|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
90.00%
|
|
90.00%
|
|
| Business Combination, Name of Acquiree |
|
|
Southwest Antennas, Inc.
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| Business Combination, Description of Acquiree |
|
|
SWA designs and manufactures high-performance rugged and mission-critical antennas primarily for ground-based defense and law enforcement applications.
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| Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount |
$ 2,700
|
|
$ 2,700
|
|
| SWA | Existing Management |
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|
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| Business Combination [Line Items] |
|
|
|
|
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
10.00%
|
|
10.00%
|
|
| FY 2026 Acquisitions |
|
|
|
|
| Business Combination [Line Items] |
|
|
|
|
| Revenues |
$ 83,900
|
|
$ 133,500
|
|
| FY 2026 Acquisitions | Customer Relationships [Member] |
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| Business Combination [Line Items] |
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| Intangible Asset, Finite-Lived, Useful Life |
12 years
|
|
12 years
|
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| FY 2026 Acquisitions | Intellectual Property [Member] |
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| Business Combination [Line Items] |
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| Intangible Asset, Finite-Lived, Useful Life |
15 years
|
|
15 years
|
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| Cook Defence Systems | 80%-owned Subsidiary |
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| Business Combination [Line Items] |
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| Business Combination, Voting Equity Interest Acquired, Percentage |
100.00%
|
|
100.00%
|
|
| Business Combination, Name of Acquiree |
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Cook Defence Systems Limited
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| Business Combination, Description of Acquiree |
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Cook Defence designs and manufactures track systems, mobility solutions, and armored steel components for military fighting vehicles.
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| William Cook Stanhope | 80%-owned Subsidiary |
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|
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| Business Combination [Line Items] |
|
|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
100.00%
|
|
100.00%
|
|
| Business Combination, Name of Acquiree |
|
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William Cook Stanhope Limited
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| Business Combination, Description of Acquiree |
|
|
Cook Defence designs and manufactures track systems, mobility solutions, and armored steel components for military fighting vehicles.
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| William Cook Intermodal | 80%-owned Subsidiary |
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| Business Combination [Line Items] |
|
|
|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
100.00%
|
|
100.00%
|
|
| Business Combination, Name of Acquiree |
|
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William Cook Intermodal Limited
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| Business Combination, Description of Acquiree |
|
|
Cook Defence designs and manufactures track systems, mobility solutions, and armored steel components for military fighting vehicles.
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| CalRamic |
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| Business Combination [Line Items] |
|
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|
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| Business Combination, Voting Equity Interest Acquired, Percentage |
90.00%
|
|
90.00%
|
|
| Business Combination, Name of Acquiree |
|
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CalRamic Technologies LLC
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| Business Combination, Description of Acquiree |
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CalRamic designs and manufactures high-voltage ceramic capacitors for high-reliability applications, primarily serving the aerospace and defense markets, as well as select industrial niches.
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| CalRamic | Existing Management |
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| Business Combination [Line Items] |
|
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| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
10.00%
|
|
10.00%
|
|