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INVENTORIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Inventory [Line Items]
Work-in-process	$ 7,549,000	$ 4,951,000
Finished goods	35,459,000	33,877,000
Total current inventories	501,607,000	389,416,000
Total non-current inventories	218,999,000	221,617,000
Inventory reserves for obsolete materials and supplies inventory	11,800,000	8,100,000
Inventory write-down	0	0	$ 12,100,000
Materials and supplies
Inventory [Line Items]
Raw materials	103,380,000	79,372,000
Total non-current inventories	1,845,000	1,293,000
Stockpiled ore
Inventory [Line Items]
Raw materials	54,504,000	27,589,000
Total non-current inventories	217,154,000	220,324,000
Leach pad inventory
Inventory [Line Items]
Raw materials	$ 300,715,000	$ 243,627,000

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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