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Operating (Gains), Losses and Other Charges, Net - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2025 USD ($) position restaurant	Sep. 25, 2024 USD ($)	Sep. 24, 2025 USD ($) position restaurant	Sep. 25, 2024 USD ($)	Dec. 25, 2024 USD ($) parcel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 891		$ 891		$ 381
Number of cafes | restaurant	1,537		1,537
Impairment charges	$ 0	$ 78	$ 3,265	$ 792
Property impairment			400
Operating lease right-of-use asset impairment			$ 900
Employee Severance | Relocation Of Support Functions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of positions eliminated | position	2		68
Severance and other restructuring charges	$ 1,200		$ 1,200		300
Franchise agreements
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of franchisee rights			2,000
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	900		900		$ 400
Property held for sale	500		500
Goodwill held for sale	$ 400		$ 400
Number of cafes | restaurant	2		2
Number of real estate properties | parcel					2

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