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INVENTORIES - Components of Inventories (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Inventory [Line Items] |  |
Work-in-process | $ 9,067 | $ 7,549
Finished goods | 31,485 | 35,459
Total current inventories | 561,495 | 501,607
Total non-current inventories | 215,640 | 218,999
Materials and supplies |  |
Inventory [Line Items] |  |
Raw materials | 123,421 | 103,380
Total non-current inventories | 2,185 | 1,845
Stockpiled ore |  |
Inventory [Line Items] |  |
Raw materials | 63,639 | 54,504
Total non-current inventories | 213,455 | 217,154
Leach pad inventory |  |
Inventory [Line Items] |  |
Raw materials | $ 333,883 | $ 300,715

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