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Summary of significant accounting policies - Narrative (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Nov. 30, 2021 USD ($) restaurant
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Value added tax and other tax receivable | $ 21,172 | $ 16,608 |  |
Payment term for accounts payable outsourcing (in days) | 180 days |  |  |
Accounts payable for outsourcing | $ 13,650 | 24,149 |  |
Lease term for most restaurants | 15 years |  |  |
Equity method investment, realized gain (loss) | $ 1,492 | 1,131 | $ 531 |
Number of restaurants | restaurant |  |  |  | 20
Equity method investments | 18,111 | 14,708 |  | $ 11,000
Equity method investment, gain (loss) on contribution of business | 0 | 0 | 8,501 |
Operadora de Franquicias Saile S.A.P.I. de C.V. |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Shareholders ownership percentage |  |  |  | 49.00%
Other investees |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Shareholders ownership percentage |  |  |  | 51.00%
Argentina |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Non-monetary asset | 157,400 |  |  |
Venezuela |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Non-monetary asset | 17,200 |  |  |
Company-operated restaurants |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Advertising costs | 175,043 | 148,776 | 104,010 |
Franchised operations |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Advertising costs | $ 51,054 | $ 44,088 | $ 32,809 |
Investors |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | restaurant |  |  |  | 21
Internal used software |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible asset, useful life | 3 years |  |  |
Minimum | Equipment |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Property and equipment, useful life | 3 years |  |  |
Maximum | Building |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Property and equipment, useful life | 40 years |  |  |
Maximum | Equipment |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Property and equipment, useful life | 10 years |  |  |

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