XML 355 R88.htm IDEA: XBRL DOCUMENT v3.25.1

Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2024	Dec. 31, 2023
Disclosure Of Transactions Between Related Parties [Line Items]
Aggregate grant value of employment agreements		$ 3,856
Minera Exar S.A.
Disclosure Of Transactions Between Related Parties [Line Items]
Directors remuneration expense		70	$ 76
Minera Exar S.A. | Cauchari-Olaroz Project
Disclosure Of Transactions Between Related Parties [Line Items]
Total construction services contract value	$ 68,000	17,141
Percentage of share of joint venture	49.00%
Service Agreement Term	5 years
Minera Exar S.A. | Cauchari-Olaroz Project | Magna Construcciones S.R.L
Disclosure Of Transactions Between Related Parties [Line Items]
Total construction services contract value		$ 534

X

- Definition

The amount of remuneration paid or payable to the entity's directors.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

+ Details

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

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate grant value of employment agreements.

+ References

No definition available.

+ Details

Name:	lar_AggregateGrantValueOfEmploymentAgreements
Namespace Prefix:	lar_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Construction service contract value.

+ References

No definition available.

+ Details

Name:	lar_ConstructionServiceContractValue
Namespace Prefix:	lar_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of share of joint venture.

+ References

No definition available.

+ Details

Name:	lar_PercentageOfShareOfJointVenture
Namespace Prefix:	lar_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Service agreement term.

+ References

No definition available.

+ Details

Name:	lar_ServiceAgreementTerm
Namespace Prefix:	lar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_JointOperationsAxis=lar_MineraExarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfContractsAxis=lar_CauchariOlarozProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_CounterpartiesAxis=lar_MagnaConstruccionesSRLMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: