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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) | 6 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Nov. 08, 2018
Goodwill And Other Intangible Assets [Line Items] |  |
Impairment of goodwill and long-lived assets | $ 0 |
Finisar Corporation |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Identifiable intangibles assets recorded in connection with acquisitions | 828,600,000 | $ 828,630,000
Finisar Corporation | Technology |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Identifiable intangibles assets recorded in connection with acquisitions | 615,800,000 |
Finisar Corporation | Customer Lists |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Identifiable intangibles assets recorded in connection with acquisitions | 125,400,000 |
Finisar Corporation | In Progress Research and Development |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Identifiable intangibles assets recorded in connection with acquisitions | 76,000,000.0 |
Finisar Corporation | Trade Names |  |
Goodwill And Other Intangible Assets [Line Items] |  |
Identifiable intangibles assets recorded in connection with acquisitions | $ 11,400,000 |

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- Definition Goodwill and other intangible assets. + References No definition available. + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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