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v3.19.2

Revenue Recognition - Disaggregation of Revenue (Details) | 6 Months Ended
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Jun. 30, 2019 brand_category
Revenue from Contract with Customer [Abstract] |
Number of brand categories | 4

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- Definition Number of Brand Categories + References No definition available. + Details
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Namespace Prefix: | has_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration