Segment Reporting - Net Revenues by Segment (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]
Net revenues, external	$ 1,776,623	$ 1,575,173	$ 3,742,472	$ 3,292,220
Net revenues, affiliate	0	0	0	0
Corporate and Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	0	0	0	0
Net revenues, affiliate	(439,919)	(545,201)	(915,849)	(1,104,414)
U.S. and Canada | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	977,115	898,269	1,765,482	1,766,649
Net revenues, affiliate	5,938	2,535	12,990	7,379
International | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	517,007	561,137	1,017,222	1,221,224
Net revenues, affiliate	133	0	133	186
Entertainment, Licensing and Digital | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	89,027	115,766	262,879	304,266
Net revenues, affiliate	2,110	3,849	3,918	7,989
eOne | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	193,474	0	696,889	0
Net revenues, affiliate	0	0	0	0
Global Operations | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues, external	0	1	0	81
Net revenues, affiliate	$ 431,738	$ 538,817	$ 898,808	$ 1,088,860