Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Mar. 16, 2021	Jun. 30, 2020
Document Information Line Items
Entity Registrant Name	JAKKS PACIFIC, INC.
Trading Symbol	JAKK
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		6,077,548
Entity Public Float			$ 25,233,237
Amendment Flag	false
Entity Central Index Key	0001009829
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	0-28104
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-4527222
Entity Address, Address Line One	2951 28th St.
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
Title of 12(b) Security	Common Stock $.001 Par Value
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes