Sale of Non-core Entertainment One Film and TV Business - Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 25, 2022	Dec. 26, 2021
Disposed of by Sale \| eOne Film And TV Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
eOne Film and TV loss before income taxes	$ (371.6)	$ (7.3)	$ (10.3)

Amount before tax of income (loss) from an individually significant component disposed of or held-for-sale including the portion attributable to the noncontrolling interest. Excludes discontinued operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3A
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-3A

Name:	us-gaap_IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsBeforeIncomeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration