COVID-19 Pandemic (Details)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 27, 2020	Jan. 02, 2021	Jan. 02, 2021
Unusual or Infrequent Item, or Both [Line Items]
Increase (decrease) in net sales (as a percent)	(20.00%)		9.00%
Increase in net income (as a percent)			70.00%
Average
Unusual or Infrequent Item, or Both [Line Items]
Percentage of stores that are closed	47.00%
Average percentage of stores that are open (more than)		99.00%