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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 26, 2021 | Dec. 27, 2020 | Dec. 29, 2019
Fair Value Disclosures [Abstract] |  |  |
Net (losses) gains on change of fair value option investments |  | $ (0.3) | $ 1.9
The Network, Joint Venture |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Gain on change in value of joint venture option agreement | $ 20.1 | $ 1.5 | $ 1.3

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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612 + Details
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- Definition Amount of unrealized gain (loss) on investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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