Independent Operator Notes and Receivables - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jan. 02, 2021	Dec. 28, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 13,859
2019	12,450
2018	6,936
2017	2,568
2016	1,155
Prior	270
Total	37,238	$ 31,952
TCAP
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,375
2019	2,321
2018	1,333
2017	186
2016	194
Prior	0
Total	5,409
Non-TCAP
Financing Receivable, Credit Quality Indicator [Line Items]
2020	3,856
2019	5,693
2018	5,603
2017	2,382
2016	961
Prior	270
Total	18,765
New store
Financing Receivable, Credit Quality Indicator [Line Items]
2020	8,628
2019	4,436
2018	0
2017	0
2016	0
Prior	0
Total	$ 13,064