The number of businesses acquired by the entity during the period.

No definition available.

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- Definition

Represents the number of restaurants.

+ References

No definition available.

+ Details

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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Balance Type:	credit
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- Details

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- Details

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- Details

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- Details

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Related Party Transactions (Details) $ in Millions		3 Months Ended	12 Months Ended
Related Party Transactions (Details) $ in Millions	Dec. 03, 2018 USD ($) restaurant	Dec. 29, 2020 restaurant	Dec. 29, 2020 USD ($) restaurant	Dec. 31, 2019 USD ($) restaurant	Dec. 25, 2018 USD ($) restaurant
Related Party Transactions
Number of restaurants acquired		2
Franchise
Related Party Transactions
Number of restaurants		97	97	97
Officers, directors and shareholders
Related Party Transactions
Number of restaurants		7	7
Officers, directors and shareholders \| Majority-owned
Related Party Transactions
Number of restaurants		2	2	1	1
Officers, directors and shareholders \| Franchise
Related Party Transactions
Number of restaurants				6	6
Fees received from franchise and license restaurants \| $			$ 1.6	$ 1.4	$ 1.3
Founder \| Franchise
Related Party Transactions
Number of restaurants acquired	1
Fees received from franchise and license restaurants \| $	$ 0.1
Founder \| Personal contribution
Related Party Transactions
Transactions with related party \| $				$ 1.0