Segment Information Reconciliation of Other Significant Reconciling Items from Segments to Consolidated (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 01, 2023	Jan. 02, 2022	Jan. 03, 2021
Segment Reporting, Other Significant Reconciling Item
Total net income of equity method investments	$ 9,422	$ 11,203	$ 6,096
Wendy's International
Segment Reporting, Other Significant Reconciling Item
Total net income of equity method investments	0	0	(417)
Global Real Estate & Development
Segment Reporting, Other Significant Reconciling Item
Total net income of equity method investments	$ 9,422	$ 11,203	$ 6,513

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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