Impairment Of Long-Lived Assets And Other Lease Charges (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 02, 2022 USD ($)	Oct. 03, 2021 USD ($)	Jul. 04, 2021 USD ($)	Apr. 04, 2021 USD ($)	Jan. 03, 2021 USD ($) restaurant	Sep. 27, 2020 USD ($)	Jun. 28, 2020 USD ($)	Mar. 29, 2020 USD ($)	Jan. 02, 2022 USD ($)	Jan. 03, 2021 USD ($) restaurant	Dec. 29, 2019 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges	$ 3,200	$ 800	$ 100	$ 400	$ 5,000	$ 2,000	$ 2,900	$ 2,900	$ 4,470	$ 12,778	$ 3,564
Impairment charges									3,900	8,200	1,700
Other lease charges									$ 600	$ 4,600	$ 1,900
Asset impairment charges, number of restaurants									9	15	7
Impairment, Nonoperating									$ 1,900
Asset Impairment Charges, Number of Restaurant Closures | restaurant					22					22
Asset Impairment Charges, Right of First Refusal										$ 2,000
Previously Impaired [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges									500	1,200	$ 300
Initial Impairments [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges									$ 1,500	$ 5,000	$ 1,300
First Right Of Refusal
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges					$ 2,000