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Franchise arrangements - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Franchise Arrangements [Line Items]
Property and equipment, net	$ 1,127,042	$ 1,119,885
Land	123,129	136,195
Property and equipment under franchise arrangements
Franchise Arrangements [Line Items]
Property and equipment, net	102,925	109,642
Land	$ 21,943	$ 27,160
Initial franchise fee
Franchise Arrangements [Line Items]
Finite-lived intangible asset, useful life	20 years

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- Definition

Franchise Arrangements [Line Items]

+ References

No definition available.

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- Definition

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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