Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) restaurant	Jan. 01, 2019 USD ($)	Jan. 02, 2018
Description of Business
Number of company-owned upscale, casual, full-service dining restaurants	294
Number of International locations operating under licensing agreements	26
Number of bakery production facilities	2
Basis of Presentation
Length of fiscal year	364 days	364 days	364 days
Cash and Cash Equivalents
Amounts receivable from credit card processors | $	$ 21,200,000	$ 17,300,000
Conversion period, credit card sales	3 days	3 days
Concentration of Credit Risk
Maximum amount of money market deposit insured by FDIC | $	$ 250,000