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Other CARES Act Provisions (Details) $ in Millions	12 Months Ended
Other CARES Act Provisions (Details) $ in Millions	Dec. 30, 2020 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Employee retention tax credit,	$ 2.6
Social security taxes	3.1
Costs of company restaurant sales
Unusual or Infrequent Item, or Both [Line Items]
Employee retention tax credit,	0.9
General and administrative expenses
Unusual or Infrequent Item, or Both [Line Items]
Employee retention tax credit,	$ 1.7