CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales		$ 515,872,000	$ 598,649,000	$ 567,810,000
Cost of sales		366,107,000	439,304,000	412,094,000
Gross profit		149,765,000	159,345,000	155,716,000
Selling, general and administrative expenses		134,860,000	161,210,000	185,142,000
Intangible asset impairment		0	9,379,000	0
Restructuring charge		1,631,000	341,000	1,114,000
Pandemic related charges		366,000	0	0
Acquisition related and other		0	6,204,000	1,633,000
Income (loss) from operations		12,908,000	(17,789,000)	(32,173,000)
Income from joint ventures		2,000	0	227,000
Other income (expense), net		301,000	(1,158,000)	152,000
Loss on extinguishment of debt		0	(13,205,000)	(453,000)
Change in fair value of preferred stock derivative liability		(2,815,000)	(353,000)	0
Change in fair value of convertible senior notes		(2,265,000)	(5,112,000)	2,948,000
Interest income		22,000	85,000	68,000
Interest expense		(21,562,000)	(15,935,000)	(10,243,000)
Loss before provision for income taxes		(13,409,000)	(53,467,000)	(39,474,000)
Provision for income taxes		735,000	1,912,000	2,951,000
Net loss		(14,144,000)	(55,379,000)	(42,425,000)
Net income (loss) attributable to non-controlling interests		130,000	169,000	(57,000)
Net loss attributable to JAKKS Pacific, Inc.	[1]	(14,274,000)	(55,548,000)	(42,368,000)
Net loss attributable to common stockholders		$ (15,531,000)	$ (56,031,000)	$ (42,368,000)
Loss per share - basic and diluted* (in Dollars per share)		$ (4.27)	$ (21.57)	$ (18.34)
Shares used in loss per share - basic and diluted* (in Shares)		3,634	2,598	2,310

[1] After giving effect to a 1 for 10 reverse stock split effective July 9, 2020.