Segment Reporting - Operating Profit (Loss) by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ 2,175	$ 128,333	$ (21,108)	$ 164,460
Corporate and Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(13,077)	5,223	(58,191)	26,955
U.S. and Canada | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	24,271	106,577	96,051	120,109
International | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(24,900)	14,583	(51,591)	(15,828)
Entertainment, Licensing and Digital | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	27,793	7,936	32,967	37,956
eOne | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(5,967)	0	(39,048)	0
Global Operations | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ (5,945)	$ (5,986)	$ (1,296)	$ (4,732)