Contract Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Contract balances
Receivables, which are included in Accounts and notes receivable, net	$ 40,300
Receivables, which are included in Advertising funds restricted assets	47,332
Deferred franchise fees at beginning of period	102,492
Revenue recognized during the period	(9,641)
New deferrals due to cash received and other	9,354
Deferred franchise fees at end of period	102,205
Deferred franchisee fees, current	9,973
Deferred franchise fees, noncurrent	$ 92,232	$ 10,881