Cover Page - shares	3 Months Ended
	Mar. 31, 2020	May 15, 2020
Cover [Abstract]
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity File Number	0-28104
Entity Registrant Name	JAKKS Pacific, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-4527222
Entity Address, Address Line One	2951 28th Street
Entity Address, City or Town	Santa Monica
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90405
City Area Code	424
Local Phone Number	268-9444
Entity Interactive Data Current	Yes
Entity Central Index Key	0001009829
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding		35,548,456