v3.25.4

Precious metals delivery and purchase agreement (Details Narrative) - USD ($) $ in Millions	1 Months Ended
	Dec. 19, 2024	Apr. 03, 2019
Statement [Line Items]
Purchase agreement		$ 25.0
Sandstorm Gold Ltd [Member] | Forward Commodity Pricing Curves [Member]
Statement [Line Items]
Loss on fair value metals deliverable	$ 1.9

X

- References

No definition available.

+ Details

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Namespace Prefix:	usas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	usas_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	usas_StatementLineItems
Namespace Prefix:	usas_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=usas_SandstormGoldLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=usas_ForwardCommodityPricingCurvesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: