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v3.20.4

Other, Net - Summary of Pre-development, reclamation and other (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Other Income and Expenses [Abstract] |  |  |
Accretion Expense, Including Asset Retirement Obligations | $ 11,754 | $ 12,154 | $ 11,116
Other Operating Income (Expense), Net | 4,954 | 6,267 | 8,927
Gain (Loss) on Termination of Lease | (4,051) | 0 | 0
Covid-19 Related Costs | 15,414 | 0 | 0
Care and maintenance costs | 17,082 | 0 | 0
Temporary Suspension Costs | 10,501 | 0 | 0
Pre-development, reclamation, and other | $ 55,654 | $ 18,421 | $ 20,043

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- Definition Costs incurred related to a mine's care and maintenance activities. + References No definition available. + Details
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- Definition Costs incurred to comply with the Company’s COVID-19 health and safety protocols + References No definition available. + Details
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- Definition Pre-development. + References No definition available. + Details
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- Definition Temporary costs excluding care and maintenance costs incurred by a mine during care and maintenance. + References No definition available. + Details
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- Definition Amount of accretion expense, which includes, but is not limited to, accretion expense from asset retirement obligations, environmental remediation obligations, and other contingencies. + References No definition available. + Details
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- Definition Amount of gain (loss) on termination of lease before expiration of lease term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121604053&loc=SL77918607-209975 + Details
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- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
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