Deferred Income - Schedule of Deferred Income (Details) - USD ($) $ in Thousands	Dec. 27, 2020	Dec. 29, 2019
Contract with Customer, Liability [Abstract]
Deferred franchise fees	$ 10,003	$ 5,417
Deferred royalties	291	422
Deferred advertising revenue	692	303
Total	$ 10,986	$ 6,142