Revenue Recognition - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jul. 02, 2023 USD ($)	Jun. 30, 2024 USD ($) brand_category	Jul. 02, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 2.4		$ 2.4
Number of brand categories | brand_category			3
Net revenues	995.3	$ 1,210.0	$ 1,752.6	$ 2,211.0
Non-Hasbro Branded Film & TV brands
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Net revenues		$ 0.8		$ 0.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 1.5		$ 1.5
Revenue, remaining performance obligation, period	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-12-30
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 0.9		$ 0.9
Revenue, remaining performance obligation, period	1 year		1 year