Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 25, 2023	Jun. 30, 2024	Jun. 25, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total revenues	$ 507,894	$ 514,530	$ 1,021,810	$ 1,041,579
Total operating income	28,226	34,912	61,944	72,708
Accumulated depreciation and amortization	(551,830)		(551,830)
Total property and equipment, net	265,693		265,693		$ 282,812
Non-cash impairment charges related to fixed and intangible assets			14,713	0
International Transformation Plan
Segment Reporting Information [Line Items]
Restructuring related costs	6,129		15,652
Domestic Company-owned restaurants
Segment Reporting Information [Line Items]
Total revenues	173,207	175,780	349,431	355,646
North America franchising
Segment Reporting Information [Line Items]
Total revenues	34,409	34,711	70,106	70,783
North America commissaries
Segment Reporting Information [Line Items]
Total revenues	198,197	206,980	401,484	419,546
International
Segment Reporting Information [Line Items]
Total revenues	39,701	34,608	80,409	66,071
All others
Segment Reporting Information [Line Items]
Total revenues	62,380	62,451	120,380	129,533
Operating segments
Segment Reporting Information [Line Items]
Total revenues	507,894	514,530	1,021,810	1,041,579
Operating segments | Domestic Company-owned restaurants
Segment Reporting Information [Line Items]
Total revenues	173,207	175,780	349,431	355,646
Total operating income	4,777	6,641	15,136	13,291
Property and equipment, gross	261,833		261,833
Non-cash impairment charges related to fixed and intangible assets	4,000		4,000
Operating segments | North America franchising
Segment Reporting Information [Line Items]
Total revenues	34,409	34,711	70,106	70,783
Total operating income	32,409	32,111	66,120	65,511
Operating segments | North America commissaries
Segment Reporting Information [Line Items]
Total revenues	198,197	206,980	401,484	419,546
Total operating income	11,403	10,397	23,738	21,127
Property and equipment, gross	147,643		147,643
Operating segments | International
Segment Reporting Information [Line Items]
Total revenues	46,547	41,354	93,220	80,058
Total operating income	(2,665)	3,763	(8,654)	10,995
Property and equipment, gross	25,034		25,034
Re-positioning and transaction costs		1,300		1,300
Operating segments | International | International Transformation Plan
Segment Reporting Information [Line Items]
Restructuring related costs	6,100		15,700
Operating segments | All others
Segment Reporting Information [Line Items]
Total revenues	55,534	55,705	107,569	115,546
Total operating income	2,170	1,343	5,368	4,500
Property and equipment, gross	137,676		137,676
Eliminations
Segment Reporting Information [Line Items]
Total revenues	(65,122)	(69,828)	(128,610)	(139,532)
Total operating income	(270)	358	(524)	351
Eliminations | North America franchising
Segment Reporting Information [Line Items]
Total revenues	(1,041)	(1,025)	(2,090)	(2,077)
Eliminations | North America commissaries
Segment Reporting Information [Line Items]
Total revenues	(50,303)	(51,586)	(99,570)	(103,403)
Eliminations | International
Segment Reporting Information [Line Items]
Total revenues	0	(869)	0	(869)
Eliminations | All others
Segment Reporting Information [Line Items]
Total revenues	(13,778)	(16,348)	(26,950)	(33,183)
Unallocated corporate expenses
Segment Reporting Information [Line Items]
Total operating income	(19,598)	(19,701)	(39,240)	(43,067)
Property and equipment, gross	$ 245,337		$ 245,337
Severance and related costs		$ 700		$ 2,000