Comprehensive Income (Loss) (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended										9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	[1]	Mar. 31, 2020	[1]	Sep. 30, 2019	Jun. 30, 2019	[1]	Mar. 31, 2019	[1]	Sep. 30, 2020	Sep. 30, 2019
Comprehensive Income (Loss) [Abstract]
Net Loss	$ 32,431	$ (23,268)		$ (11,998)		$ 16,414	$ (22,485)		$ (29,127)		$ (2,835)	$ (35,198)
Other comprehensive income (loss):
Foreign currency translation adjustment	1,134	$ 81		$ (1,634)		(898)	$ (450)		$ 1,303		(419)	(45)
Comprehensive income (loss)	33,565					15,516					(3,254)	(35,243)
Less: Comprehensive income (loss) attributable to non-controlling interests	49					(31)					97	57
Comprehensive income (loss) attributable to JAKKS Pacific, Inc.	$ 33,516					$ 15,547					$ (3,351)	$ (35,300)

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