Independent Operator Notes and Receivables - Amounts Due From Independent Operators and the Related Allowances and Accruals for Estimated Losses (Details) - USD ($) $ in Thousands	Jul. 03, 2021	Jan. 02, 2021
Financing Receivable, after Allowance for Credit Loss [Abstract]
Gross	$ 31,353	$ 37,238
Allowance, Current Portion	(586)	(514)
Allowance, Long-term Portion	(8,961)	(7,124)
Net	21,806	29,600
Current Portion	1,609	2,160
Long-term Portion	20,197	27,440
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Gross	5,307	3,754
Allowance, Current Portion	(630)	(471)
Allowance, Long-Term Portion	0	0
Net	4,677	3,283
Current Portion	4,677	3,283
Long-term Portion	0	0
Accounts, Notes, Loans and Financing Receivable, Unclassified [Abstract]
Gross	36,660	40,992
Allowance, Current Portion	(1,216)	(985)
Allowance, Long-Term Portion	(8,961)	(7,124)
Net	26,483	32,883
Current Portion	6,286	5,443
Long-term Portion	$ 20,197	$ 27,440

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