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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