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Goodwill - Additional Information (Detail)	Dec. 31, 2016
U.S. and Canada
Goodwill [Line Items]
Percentage of excess coverage of fair value over the carrying value	2.00%
International
Goodwill [Line Items]
Percentage of excess coverage of fair value over the carrying value	20.60%
Halloween
Goodwill [Line Items]
Percentage of excess coverage of fair value over the carrying value	2.00%

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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

+ Details

Name:	us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=jakk_USAndCanadaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=jakk_InternationalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=jakk_HalloweenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: