Segment Reporting - Operating Profit (Loss) by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ 336,558	$ 297,210	$ 315,450	$ 461,670
Corporate and Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(2,901)	618	(61,092)	27,573
U.S. and Canada | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	262,977	193,686	359,028	313,795
International | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	63,924	67,238	12,333	51,410
Entertainment, Licensing and Digital | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	32,791	24,594	65,758	62,550
eOne | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(25,914)	0	(64,962)	0
Global Operations | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ 5,681	$ 11,074	$ 4,385	$ 6,342