Reclamation Liabilities (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Jan. 15, 2021 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
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| Reclamation Liabilities | ||||
| Accrual for environmental loss contingencies | $ 558 | $ 534 | ||
| Cash collateral for a surety bond | $ 3,000 | |||
| Payment for cash collateral | $ 7,500 | |||
| Asset retirement obligations | $ 558 | $ 0 | $ 534 | |
| Risk free interest rate | 7.00% | 7.00% | ||
| Inflation rate | 2.70% | 2.70% | ||
| Administrative Settlement Agreement and Order on Consent | ||||
| Reclamation Liabilities | ||||
| Accrual for environmental loss contingencies | $ 0 | |||
| Environmental reclamation liability | $ 0 | $ 0 | ||
| X | ||||||||||
- Definition Percentage of inflation rate used in estimating reclamation and closure costs. No definition available.
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- Definition Percentage of risk free interest rate used in estimating reclamation and closure costs. No definition available.
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- Definition Amount of payment of cash collateral. No definition available.
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Increase (decrease) in the accrual for environmental loss contingencies during the reporting period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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