Leases - Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 29, 2020	Jun. 30, 2020	Oct. 01, 2019	Sep. 29, 2020	Oct. 01, 2019
Leases [Abstract]
Percentage of restaurant dining rooms open	90.00%			90.00%
Deferred rent for lease amendments due to COVID-19 pandemic				$ 4,200,000
Asset impairment charge for certain operating leases	$ 0	$ 300,000
Sublease income	$ 200,000		$ 200,000	$ 700,000	$ 400,000