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

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Number of pending claims pertaining to a loss contingency.

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The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of a reclamation and mine closing liability that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and revegetation of waste rock piles and other disturbed areas.

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Cash payment to affiliate as percentage of value of annual gold production from current mining leases.

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Gross proceeds royalty percent in addition to agreed upon gross proceeds royalty percent.

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Royalty payment to affiliate as percentage of the gross proceeds value of annual gold production from current mining leases, including additional gross proceeds.

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Commitments and Contingencies (Details) $ in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2025 AUD ($)	Apr. 30, 2025 claim	Mar. 31, 2025 USD ($)
Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number \| claim		2
Mexican Tax Authority \| Subsidiaries
Loss Contingencies [Line Items]
Loss contingency, range of possible loss, portion not accrued			$ 3,600
Mt Todd, Australia \| Scenario, Plan
Loss Contingencies [Line Items]
Rehabilitation liabilities	$ 73
Mt Todd, Australia \| Scenario, Plan \| Jawoyn Association Aboriginal Corporation
Loss Contingencies [Line Items]
Percentage of royalty on gold	1.00%
Mt Todd, Australia \| Scenario, Plan \| Minimum \| Jawoyn Association Aboriginal Corporation
Loss Contingencies [Line Items]
Gross proceeds royalty, Additional contingent gross proceeds royalty, Percent	0.125%		0.125%
Gross proceeds royalty, Including contingent additional gross proceeds royalty, Percent	1.125%		1.125%
Mt Todd, Australia \| Scenario, Plan \| Maximum \| Jawoyn Association Aboriginal Corporation
Loss Contingencies [Line Items]
Gross proceeds royalty, Additional contingent gross proceeds royalty, Percent	2.00%		2.00%
Gross proceeds royalty, Including contingent additional gross proceeds royalty, Percent	3.00%		3.00%