XML 97 R58.htm IDEA: XBRL DOCUMENT
v3.21.1

Fair Value of Financial Instruments - Narrative (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 29, 2020 USD ($) | Mar. 28, 2021 company
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Loss on available for sale investments, fair value option | $ (0.4) |
Number of companies quoted on an active public market | company |  | 1
Fair Value, Recurring |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Available-for-sale investments, elected fair value option | $ 24.8 |

X
- Definition Available for sale investments for which the fair value option was elected. + References No definition available. + Details
Name: | has_FairValueOptionAvailableForSaleInvestments
Namespace Prefix: | has_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of Companies Quoted on an Active Public Market + References No definition available. + Details
Name: | has_NumberOfCompaniesQuotedOnAnActivePublicMarket
Namespace Prefix: | has_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
Name: | us-gaap_FairValueOptionChangesInFairValueGainLoss1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |