Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023	Dec. 25, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,059,387	$ 2,135,713	$ 2,102,103
Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	724,666	760,825	708,389
Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	187,032	194,987	186,821
Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	899,664	924,648	950,115
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	83,682	98,037	101,646
Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	164,343	157,216	155,132
Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	2,047,039	2,120,641	2,095,796
Operating Segments | Domestic Company-owned restaurants
Disaggregation of Revenue [Line Items]
Total revenues	692,736	726,362	708,389
Operating Segments | Domestic Company-owned restaurants | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	692,736	726,362	708,389
Operating Segments | Domestic Company-owned restaurants | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | Domestic Company-owned restaurants | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | Domestic Company-owned restaurants | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | Domestic Company-owned restaurants | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America franchising
Disaggregation of Revenue [Line Items]
Total revenues	143,241	148,817	141,521
Operating Segments | North America franchising | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America franchising | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	143,241	148,817	141,521
Operating Segments | North America franchising | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America franchising | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America franchising | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America commissaries
Disaggregation of Revenue [Line Items]
Total revenues	1,037,008	1,062,975	1,087,204
Operating Segments | North America commissaries | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America commissaries | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America commissaries | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	1,037,008	1,062,975	1,087,204
Operating Segments | North America commissaries | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | North America commissaries | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Operating Segments | International
Disaggregation of Revenue [Line Items]
Total revenues	174,054	182,487	158,682
Operating Segments | International | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	31,930	34,463	0
Operating Segments | International | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	47,941	50,437	49,422
Operating Segments | International | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	67,890	72,287	80,481
Operating Segments | International | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	12,701	12,617	14,135
Operating Segments | International | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	13,592	12,683	14,644
All Other
Disaggregation of Revenue [Line Items]
Total revenues	279,385	296,440	298,282
All Other | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
All Other | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
All Other | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
All Other | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	85,914	101,789	107,194
All Other | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	193,471	194,651	191,088
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	(267,037)	(281,368)	(291,975)
Intersegment Eliminations | Company-owned restaurant sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Intersegment Eliminations | Franchise royalties and fees
Disaggregation of Revenue [Line Items]
Total revenues	(4,150)	(4,267)	(4,122)
Intersegment Eliminations | Commissary revenues
Disaggregation of Revenue [Line Items]
Total revenues	(205,234)	(210,614)	(217,570)
Intersegment Eliminations | Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	(14,933)	(16,369)	(19,683)
Intersegment Eliminations | Advertising funds revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ (42,720)	$ (50,118)	$ (50,600)