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Commitments and Contingencies (Narratives) (Details) ¥ in Millions | Jan. 14, 2021 USD ($) | Nov. 13, 2020 USD ($) | Jun. 05, 2020 USD ($) | Jun. 20, 2019 USD ($) | Jun. 20, 2019 CNY (¥) | Dec. 31, 2020 USD ($)
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Shenzhen Dunjun Technology Ltd. v. Aerohive Networks (Hangzhou) Ltd |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Damages claims amount |  |  |  | $ 1,500,000 | ¥ 10.0 |
Hanger Solutions, LLC v. Extreme Networks, Inc | Subsequent Event |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Number of patents allegedly infringed | 3 |  |  |  |  |
DataCloud Technologies L L C V Extreme Networks Inc |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Number of patents allegedly infringed |  | 4 | 4 |  |  |
Inventory Purchase Commitments |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |
Non-cancelable purchase commitments |  |  |  |  |  | $ 38,000,000.0

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