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Revenues - Narrative (Details) - USD ($) $ in Thousands		6 Months Ended
	Dec. 25, 2019	Jun. 24, 2020
Disaggregation of Revenue [Line Items]
Liability balance		$ 2,112
Deferred revenue recognized	$ 1,500
Gift Card Redemption
Disaggregation of Revenue [Line Items]
Liability balance	$ 6,500	5,000
Deferred revenue recognized		$ 500
Minimum | Deferred franchise revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-25
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred franchise revenue expected to be recognized, period		10 years
Maximum | Deferred franchise revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-25
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred franchise revenue expected to be recognized, period		20 years

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
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+ References

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