Segment Reporting - Total Assets by Segments (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 29, 2019	Mar. 31, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 10,424,359	$ 8,855,628	$ 4,934,773
Corporate and Eliminations
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	(5,305,753)	(901,580)	(1,196,889)
U.S. and Canada | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,335,131	3,244,950	2,600,873
International | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,016,267	2,482,170	2,019,800
Entertainment, Licensing and Digital | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	869,645	695,898	804,288
eOne | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	5,850,529	0	0
Global Operations | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 3,658,540	$ 3,334,190	$ 706,701