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v3.19.3

Revenue Recognition and Reserve for Sales Returns and Allowances - Additional Information (Detail) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Significant Accounting Policies [Line Items] |  |
Reserve for sales returns and allowances | $ 38,109 | $ 29,403
Minimum |  |
Significant Accounting Policies [Line Items] |  |
Discount on invoiced amount of products | 1.00% |
Maximum |  |
Significant Accounting Policies [Line Items] |  |
Discount on invoiced amount of products | 20.00% |

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- Definition Cash Discount Discount Rate + References No definition available. + Details
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Period Type: | duration

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- Definition Sales Reserves and Allowances + References No definition available. + Details
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Namespace Prefix: | jakk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Significant Accounting Policies [Line Items] + References No definition available. + Details
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Namespace Prefix: | jakk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |