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RECLAMATION LIABILITIES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Çöpler
Segment Reporting Information [Line Items]
Reclamation adjustments, changes in estimates	$ 3.8	$ 4.7
Marigold
Segment Reporting Information [Line Items]
Reclamation adjustments, changes in estimates	3.6	4.8
Seabee
Segment Reporting Information [Line Items]
Reclamation adjustments, changes in estimates	12.5
Puna
Segment Reporting Information [Line Items]
Reclamation adjustments, changes in estimates	$ 12.9	$ 5.6

X

- Definition

Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)(4)
-URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

+ Details

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X

- 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.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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X

- Details

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