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v3.23.3

Acquisitions (Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 01, 2021 | Jul. 06, 2021 | Mar. 26, 2021 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Business Acquisition [Line Items] |  |  |  |  |  |
Cash |  |  |  | $ 0 | $ 347,554 | $ 19,108
Goodwill |  |  |  | 341,593 | $ 340,477 | $ 225,522
Ventus |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash | $ 350,000 |  |  |  |  |
Cash | 350,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Tangible Assets Acquired (Liabilities) Assumed | 20,365 |  |  |  |  |
Goodwill | 118,635 |  |  |  |  |
Total assets acquired and liabilities assumed | 350,000 |  |  |  |  |
Ctek |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash |  | $ 12,012 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability |  | 300 |  | 0 |  |
Business Combination, Contingent Consideration, Liability |  | 422 |  |  |  |
Total consideration transferred |  | 12,734 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Tangible Assets Acquired (Liabilities) Assumed |  | 397 |  |  |  |
Deferred tax liability on identifiable intangible assets |  | (1,000) |  |  |  |
Goodwill |  | 4,867 |  |  |  |
Total assets acquired and liabilities assumed |  | 12,734 |  |  |  |
Haxiot |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash |  |  | $ 7,100 |  |  |
Cash |  |  | 7,096 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability |  |  | 5,900 | $ 0 |  |
Total consideration transferred |  |  | 12,996 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Tangible Assets Acquired (Liabilities) Assumed |  |  | 86 |  |  |
Deferred tax liability on identifiable intangible assets |  |  | (1,145) |  |  |
Goodwill |  |  | 8,605 |  |  |
Total assets acquired and liabilities assumed |  |  | 12,996 |  |  |
Customer Relationships | Ventus |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 179,000 |  |  |  |  |
Customer Relationships | Ctek |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  | 5,100 |  |  |  |
Customer Relationships | Haxiot |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  |  | 3,900 |  |  |
Trademarks | Ventus |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 16,000 |  |  |  |  |
Trademarks | Ctek |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  | 70 |  |  |  |
Trademarks | Haxiot |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  |  | 500 |  |  |
Purchased and Core Technology | Ventus |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 16,000 |  |  |  |  |
Purchased and Core Technology | Ctek |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  | $ 1,300 |  |  |  |
Purchased and Core Technology | Haxiot |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  |  | $ 1,050 |  |  |

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