SUPPLEMENTAL CASH FLOW INFORMATION - Operating Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023
Decrease (increase) in operating assets:
Trade and other receivables	$ 29,694	$ (9,532)
Inventories	(78,078)	(56,371)
Other operating assets	6,381	(911)
Increase (decrease) in operating liabilities:
Accounts payable	(13,135)	(22,700)
Accrued liabilities and other	(6,750)	(17,488)
Reclamation and remediation liabilities	(290)	(791)
Other operating liabilities	(487)	(4,031)
Net change in operating assets and liabilities	$ (62,665)	$ (111,824)

Increase (Decrease) in Asset Retirement Obligation, Costs

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- Definition

The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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- Definition

The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.

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- Definition

The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

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Amount of increase (decrease) in operating assets classified as other.

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Amount of increase (decrease) in operating liabilities classified as other.

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