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Income Taxes (Narratives) (Details) - USD ($) | 3 Months Ended
--- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019
Operating Loss Carryforwards [Line Items] |  |  |
Income tax provision (benefit) | $ 1,320,000 |  | $ 1,595,000
Remaining state net operating loss | 0 |  | $ 0
Additions resulting from the acquisition of Aerohive |  | $ 75,000,000 |
Unrecognized tax benefits | 23,800,000 |  |
Unrecognized tax benefits that would affect the effective tax rate if recognized | 500,000 |  |
Unrecognized tax benefit future impact if recognized | $ 23,300,000 |  |
Aerohive Networks, Inc. |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Amortization period of intangible assets and goodwill resulting from acquisition |  | 10 years |

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