Environmental and Reclamation Activities [Line Items]

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

+ References

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

+ References

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- Definition

Indicates line item in statement of financial position that includes accrual for environmental loss contingency classified as current.

+ References

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- Definition

Indicates line item in statement of financial position that includes accrual for environmental loss contingency classified as noncurrent.

+ References

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Indicates line item in statement of financial position that includes accrual for environmental loss contingency.

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Note 5 - Environmental and Reclamation Activities - Schedule of Reclamation and Closure Costs Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 126,286	$ 107,906	$ 109,302	$ 105,647
Reclamation and closure costs, current	$ (13,795)	$ (13,748)
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Reclamation Costs, Current	Accrued Reclamation Costs, Current
Reclamation and closure costs, non-current	$ 112,491	$ 94,158
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Mine Reclamation and Closing Liability, Noncurrent	Mine Reclamation and Closing Liability, Noncurrent
Operating Properties [Member] \| Greens Creek [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 51,634	$ 38,737
Operating Properties [Member] \| Lucky Friday [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	14,914	10,982
Operating Properties [Member] \| Keno Hill [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 3,733	$ 3,500
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Employee-related Liabilities, Current	Employee-related Liabilities, Current
Non-Operating Properties [Member] \| Nevada Operations [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 35,885	$ 33,700
Non-Operating Properties [Member] \| Troy Mine [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	3,007	3,385
Non-Operating Properties [Member] \| Johnny M [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	9,703	10,148
Non-Operating Properties [Member] \| All Other Sites [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 7,410	$ 7,454