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Fair Value Measurements Non Recurring and Other (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 26, 2021 USD ($) restaurant | Dec. 27, 2020 USD ($) restaurant | Dec. 29, 2019 USD ($) restaurant
Fair Value Disclosures [Abstract] |  |  |
Number of restaurants impaired | restaurant | 10 | 40 | 29
Carrying Value of Impaired Assets Prior to Impairment | $ 13.7 | $ 67.3 | $ 17.3
Fair Value, Impaired Restaurant Assets | 7.2 | $ 34.7 | $ 2.2
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure | 7.2 |  |
Impairment of indefinite-lived intangible assets | $ 0.5 |  |

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- Definition Number Of Restaurants Impaired + References No definition available. + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -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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- Definition Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 + Details
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