Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
Net Loss	$ (11,998)	$ (29,127)
Other comprehensive income (loss):
Foreign currency translation adjustment	(1,634)	1,303
Comprehensive loss	(13,632)	(27,824)
Less: Comprehensive income attributable to non-controlling interests	40	31
Comprehensive loss attributable to JAKKS Pacific, Inc.	$ (13,672)	$ (27,855)