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Related party balances and transactions - Transactions with related parties (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Related party balances and transactions |  |  |
Aeronautical/Commercial revenue | $ 29,617 | $ 27,120 | $ 14,267
Fees | (13,878) | (13,066) | (10,300)
Interest accruals | 3,591 | 1,855 | 660
Acquisition of goods and services | (35,403) | (31,124) | (22,955)
Compensation to the Group's key staff | (5,971) | (4,871) | (4,249)
Others | $ (2,173) | $ (2,593) | $ (4,198)

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- Definition The amount of fees received from related parties. + References No definition available. + Details
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Namespace Prefix: | caap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of interest accrued from related parties. + References No definition available. + Details
Name: | caap_InterestAccrualRelatedParties
Namespace Prefix: | caap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of other expenses (income) from related parties not provided separately. + References No definition available. + Details
Name: | caap_OtherRelatedPartiesOther
Namespace Prefix: | caap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of goods and services purchased by the entity in related party transactions. + References No definition available. + Details
Name: | caap_PurchasesOfGoodsAndServicesRelatedPartyTransactions
Namespace Prefix: | caap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | ifrs-full_RelatedPartyTransactionsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration