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Financial Assets Measured at Fair Value on Recurring Basis (Detail) - Cash Equivalents - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Fair Value Measurements, Level 1 |  |
Schedule Of Servicing Assets At Fair Value And Amortized Value [Line Items] |  |
Assets measured at fair value on recurring basis | $ 15,312 | $ 13,218
Carrying Amount |  |
Schedule Of Servicing Assets At Fair Value And Amortized Value [Line Items] |  |
Assets measured at fair value on recurring basis | $ 15,312 | $ 13,218

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- Definition Schedule Of Servicing Assets At Fair Value And Amortized Value [Line Items] + References No definition available. + Details
Name: | jakk_ScheduleOfServicingAssetsAtFairValueAndAmortizedValueLineItems
Namespace Prefix: | jakk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |