Impairment Of Long-Lived Assets And Other Lease Charges (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2023 USD ($) restaurant	Jul. 03, 2022 USD ($) restaurant	Jul. 02, 2023 USD ($) restaurant	Jul. 03, 2022 USD ($) restaurant
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges	$ 2,700	$ 1,500	$ 4,100	$ 2,000
Impairment and other lease charges (Note 4)	$ 2,749	$ 18,176	$ 4,089	$ 18,672
Number of restaurants closed | restaurant		4
Asset impairment charges, number of restaurants | restaurant		6		5
Asset Impairment Charges, Number of Underperforming Restaurants | restaurant				7
Closed Restaurants
Impaired Long-Lived Assets Held and Used [Line Items]
Number of restaurants closed | restaurant	3		6
Initial Impairment Charge [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges (Note 4)		$ 900		$ 1,000
Previously Impaired
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges (Note 4)			$ 300	300
Capital Expenditures At Underperforming Restaurants [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges (Note 4)	$ 200	200
Other Lease Charges [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment and other lease charges (Note 4)	$ 2,500	$ 400	$ 3,800	$ 700