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Goodwill and Other Identifiable Intangible Assets, Net (Additional Information) (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Jun. 30, 2024 USD ($) segment | Sep. 30, 2023 USD ($)
Goodwill [Line Items] |  |
Number of Reportable Segments | segment | 2 |
Goodwill | $ 341,916 | $ 341,593
Enterprise Routers |  |
Goodwill [Line Items] |  |
Goodwill | 32,700 |
Console Servers |  |
Goodwill [Line Items] |  |
Goodwill | 57,100 |
OEM Solutions |  |
Goodwill [Line Items] |  |
Goodwill | 64,200 |
Infrastructure Mgmt. |  |
Goodwill [Line Items] |  |
Goodwill | 20,400 |
SmartSense |  |
Goodwill [Line Items] |  |
Goodwill | 48,900 |
Ventus |  |
Goodwill [Line Items] |  |
Goodwill | 118,600 |
IoT Products & Services Segment |  |
Goodwill [Line Items] |  |
Goodwill | 174,357 | 173,957
IoT Solutions Segment |  |
Goodwill [Line Items] |  |
Goodwill | $ 167,559 | $ 167,636

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