Segment Reporting - Net Revenues by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 995.3	$ 1,210.0	$ 1,752.6	$ 2,211.0
Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0.0	0.0	0.0	0.0
Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0.0	0.0	0.0	0.0
Corporate and Other | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(112.7)	(137.4)	(198.4)	(210.9)
Consumer Products | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	524.5	655.2	937.5	1,175.6
Consumer Products | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	64.7	80.8	104.0	145.2
Wizards of the Coast and Digital Gaming
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	452.0	375.6	768.3	670.8
Wizards of the Coast and Digital Gaming | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	452.0	375.6	768.3	670.8
Wizards of the Coast and Digital Gaming | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	36.0	45.2	73.9	52.9
Entertainment
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	18.8	179.2	46.8	364.6
Entertainment | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	18.8	179.2	46.8	364.6
Entertainment | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 12.0	$ 11.4	$ 20.5	$ 12.8