Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 25, 2020	Dec. 25, 2019
Disaggregation of Revenue [Line Items]
Liability balance	$ 2,179
Deferred revenue recognized	800
Gift Card Redemption
Disaggregation of Revenue [Line Items]
Liability balance	4,800	$ 6,500
Deferred revenue recognized	$ 200
Minimum | Deferred franchise revenue | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-03-26
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]: 2020-03-26
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred franchise revenue expected to be recognized, period	20 years