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Goodwill and Identifiable Intangible Assets (Acquired Finite-Lived Intangibles) (Details) - USD ($) $ in Millions |  | 6 Months Ended |
--- | --- | --- | ---
Jun. 01, 2021 | Jun. 30, 2021 | Dec. 17, 2020
Trade Names |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible asset, useful life | 30 years |  |
PowerA |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Identifiable intangibles |  |  | $ 239.7
PowerA | Trade Names |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Identifiable intangibles |  |  | 21.6
Finite-lived intangible asset, useful life |  | 15 years |
PowerA | Customer and contractual relationships |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Identifiable intangibles |  |  | 127.6
Finite-lived intangible asset, useful life |  | 15 years |
PowerA | Vendor Relationships |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Identifiable intangibles |  |  | 87.7
Finite-lived intangible asset, useful life |  | 15 years |
PowerA | Developed Technology Rights |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Identifiable intangibles |  |  | $ 2.8
Finite-lived intangible asset, useful life |  | 5 years |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + 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=121647850&loc=d3e4845-128472 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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