Sale of Non-Core Entertainment One Film and TV Business - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2024	Oct. 01, 2023	Sep. 29, 2024	Oct. 01, 2023	Dec. 31, 2023	Dec. 27, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax non-cash loss on assets held for sale	$ 0.0	$ 473.0	$ 24.4	$ 473.0
eOne Film and TV | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate sales price						$ 375.0
Pre-tax non-cash loss on assets held for sale		$ 473.0		$ 473.0	$ 539.0
Pre-tax cash transaction expenses					$ 35.1