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Derivative Financial Instruments - Summary of Derivative Cash Flow Hedges (Details) - Designated as Hedging Instrument $ in Thousands | 9 Months Ended
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Sep. 30, 2021 USD ($) oz $ / oz Rate
Gold Put Options - 2020 |
Derivative [Line Items] |
Average gold strike price per ounce | $ / oz | 1,600
Notional ounces | oz | 39,675
Gold Call Options - 2020 |
Derivative [Line Items] |
Average gold strike price per ounce | $ / oz | 1,882
Notional ounces | oz | 39,675
Gold Put Options - 2021 |
Derivative [Line Items] |
Average gold strike price per ounce | $ / oz | 1,630
Notional ounces | oz | 132,000
Gold Call Options - 2021 |
Derivative [Line Items] |
Average gold strike price per ounce | $ / oz | 2,038
Notional ounces | oz | 132,000
Mexican peso forward exchange contracts 2020 |
Derivative [Line Items] |
Derivative, forward exchange rate | Rate | 2543.00%
Derivative, notional amount | $ | $ 15
Mexican peso forward exchange contracts 2021 |
Derivative [Line Items] |
Derivative, forward exchange rate | Rate | 0.00%
Derivative, notional amount | $ | $ 0

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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Nominal mass used to calculate payments on a derivative instrument. + References No definition available. + Details
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- Definition Fixed price related to the price risk swap derivative. + References No definition available. + Details
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