Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-URI https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

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- Definition

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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- Definition

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

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- Definition

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

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- Definition

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) - 9 months ended Sep. 30, 2022 $ in Thousands, $ in Millions	USD ($)	AUD ($)
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies, Revision in Estimates	$ 240
Mt Todd, Australia \| Scenario, Plan
Loss Contingencies [Line Items]
Mine Reclamation and Closing Liability, Noncurrent		$ 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%
Gross Proceeds Royalty, Including Contingent Additional Gross Proceeds Royalty, Percent		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%
Gross Proceeds Royalty, Including Contingent Additional Gross Proceeds Royalty, Percent		3.00%