Additional Comprehensive Income (Loss) Detail - Summary of Pre-development, reclamation and other (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Income and Expenses [Abstract]
Covid-19 Related Costs	$ 14	$ 294	$ 92	$ 1,585
Care and maintenance costs	2,780	4,628	13,569	15,542
Accretion	4,153	3,597	12,219	10,588
Other Operating Income (Expense), Net	1,733	730	3,738	2,124
Pre-development, reclamation, and other	$ 8,680	$ 9,249	$ 29,618	$ 29,839

Costs incurred related to a mine's care and maintenance activities.

No definition available.

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- Definition

Costs incurred to comply with the Company’s COVID-19 health and safety protocols

+ References

No definition available.

+ Details

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- Definition

Pre-development.

+ References

No definition available.

+ Details

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- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481879/410-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

+ Details

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- References

No definition available.

+ Details

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- Definition

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

+ References

No definition available.

+ Details

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