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Business Combination - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 30, 2019 | Nov. 30, 2019 | Dec. 26, 2021 | Dec. 27, 2020 | Dec. 29, 2019 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 3,419,600,000 | $ 3,691,700,000 | $ 494,600,000 |
Acquisition and related costs |  |  | 0 | 218,600,000 | 0 |
Asset impairments |  |  | 0 | 71,500,000 | 0 |
Payment for debt prepayment cost |  |  | 9,100,000 | 0 | 0 |
Entertainment |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 1,527,400,000 | 2,252,900,000 | 11,800,000 |
Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  | 2 years |  |  |
Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  | 25 years |  |  |
Unsecured Debt | $1.0 Billion Term Loan Agreement |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 1,000,000,000
eOne Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total purchase price to be allocated | $ 4,600,000,000 |  |  |  |  |
Cash consideration for employee share based payment awards outstanding | 3,800,000,000 |  |  |  |  |
Aggregate purchase price, liabilities assumed | 800,000,000 |  |  |  |  |
Shares issued in business combination (in shares) |  | 10.6 |  |  |  |
Business combination, share price (in USD per share) |  | $ 95.00 |  |  |  |
Shares issued in business combination value |  | $ 975,200,000 |  |  |  |
Amortization of intangibles |  |  | $ 85,000,000 | 97,900,000 | 38,800,000 |
Investments in productions and content | 564,800,000 |  |  |  |  |
Goodwill | $ 3,200,000,000 |  |  | 3,200,000,000 |  |
Acquisition and related costs |  |  |  | 218,600,000 |  |
Integration related costs |  |  |  | 145,200,000 |  |
Restructuring and related cost |  |  |  | 73,400,000 |  |
Asset impairments |  |  |  | 40,900,000 |  |
Acquisition costs |  |  |  |  | 24,300,000 |
Interest expense |  |  |  |  | 75,400,000 |
Other expenses |  |  |  |  | 74,800,000 |
Payment for debt prepayment cost |  |  |  |  | 19,800,000 |
Income tax effect of pro forma adjustments, amount |  |  |  |  | $ 12,300,000 |
Blended statutory Income tax rate, percent |  |  |  |  | 22.50% |
eOne Acquisition | Foreign exchange forward |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Other expenses |  |  |  |  | $ 94,600,000 |
eOne Acquisition | Entertainment |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition and related costs |  |  |  | $ 133,200,000 |  |
eOne Acquisition | Titles |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Threshold years for amortization method | 3 years |  |  |  |  |
eOne Acquisition | Minimum | Trademarks and Trade Names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-lived intangible asset, useful life | 7 years |  |  |  |  |
eOne Acquisition | Maximum | Trademarks and Trade Names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-lived intangible asset, useful life | 15 years |  |  |  |  |
eOne Acquisition | Maximum | Titles Over 3 Years Old |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-lived intangible asset, useful life | 10 years |  |  |  |  |
eOne Acquisition | Senior Notes |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  | $ 2,400,000,000 |  |  |  |
eOne Acquisition | Unsecured Debt | $1.0 Billion Term Loan Agreement |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Debt instrument, face amount | $ 1,000,000,000 |  |  |  |  |

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- Definition The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10(c)(7)(ii)) -URI http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10(c)(3)(ii)(A)) -URI http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862 + Details
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