Revenue (Estimated Future Franchise Fees) (Details) $ in Thousands	Sep. 27, 2020 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 43,541
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-09-28
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	4,934
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-04
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	4,828
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-03
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	4,628
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-02
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	4,436
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-09-30
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	4,208
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-09-28
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 20,507