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RECLAMATION AND REMEDIATION LIABILITIES - Reclamation and Remediation Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Reclamation Liabilities [Roll Forward]
Balance as of January 1			$ 345,837	$ 173,819
Additions			220,974	261,674
Changes in estimate and other			62,927	11,054
Expenditures			(12,684)	(77,873)
Accretion expense			11,190	4,829
Balance as of June 30	$ 628,244	$ 373,503	628,244	373,503
Less: current  portion	(32,336)	(143,537)	(32,336)	(143,537)	$ (33,166)
Non-current reclamation and remediation liabilities	595,908	229,966	595,908	229,966	$ 312,671
Çöpler Incident
Reclamation Liabilities [Roll Forward]
Changes in estimate and other			12,900
Reclamation
Reclamation Liabilities [Roll Forward]
Balance as of January 1			209,923	173,819
Additions			220,974	0
Changes in estimate and other			9,420	11,054
Expenditures			(2,506)	(663)
Accretion expense	6,874	2,414	11,190	4,829
Balance as of June 30	449,001	189,039	449,001	189,039
Less: current  portion	(14,404)	(6,784)	(14,404)	(6,784)
Non-current reclamation and remediation liabilities	434,597	182,255	434,597	182,255
Reclamation | Çöpler Incident
Reclamation Liabilities [Roll Forward]
Changes in estimate and other			9,400
Remediation
Reclamation Liabilities [Roll Forward]
Balance as of January 1			135,914	0
Additions			0	261,674
Changes in estimate and other			53,507	0
Expenditures			(10,178)	(77,210)
Accretion expense			0	0
Balance as of June 30	179,243	184,464	179,243	184,464
Less: current  portion	(17,932)	(136,753)	(17,932)	(136,753)
Non-current reclamation and remediation liabilities	$ 161,311	$ 47,711	161,311	$ 47,711
Remediation | Çöpler Incident
Reclamation Liabilities [Roll Forward]
Changes in estimate and other			$ 53,500

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- Definition

Asset Retirement Obligation, Additions

+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 25
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481999/410-20-25-4

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

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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

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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Current portion of 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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

+ References

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

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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
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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Noncurrent portion of 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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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