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MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | $ 5,504,182 | $ 4,668,819
Accumulated depreciation, plant and equipment | (687,184) | (621,323)
Accumulated depletion, mineral properties | (571,982) | (498,050)
Mineral properties, plant, and equipment, net | 4,245,016 | 3,549,446
Finance lease, right-of-use asset, before accumulated amortization | 97,700 | 101,700
Plant and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | 1,879,461 | 1,793,914
Construction in process |  |
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | 83,407 | 58,704
Mineral properties subject to depletion |  |
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | 1,472,242 | 1,452,850
Mineral properties not yet subject to depletion |  |
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | 1,548,188 | 848,281
Exploration and evaluation assets |  |
Property, Plant and Equipment [Line Items] |  |
Total mineral properties, plant, and equipment | $ 520,884 | $ 515,070

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- Definition Amount, before accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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