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CONTINGENCIES - Narrative (Details) - USD ($) $ in Thousands |  | 45 Months Ended
--- | --- | ---
Sep. 01, 2021 | Dec. 31, 2023
Disclosure Of Contingencies [Abstract] |  |
Shipping fees | $ 5,165 | $ 565

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- Definition Disclosure Of Contingencies + References No definition available. + Details
Name: | ltm_DisclosureOfContingenciesAbstract
Namespace Prefix: | ltm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Shipping Fees + References No definition available. + Details
Name: | ltm_ShippingFees
Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration