Investments in Productions and Investments in Acquired Content Rights - Narrative (Details) - eOne Acquisition $ in Thousands	12 Months Ended
Dec. 27, 2020 USD ($)
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 1,056,000
Trade names
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	100,000
TV, Music and Film Assets
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 627,873

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration