XML 65 R52.htm IDEA: XBRL DOCUMENT
v3.21.2

Investments (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
May 10, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Equity securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Cost |  | $ 138,167 |  | $ 138,167 |  | $ 7,668
Debt Securities, Available-for-sale [Abstract] |  |  |  |  |  |
Marketable Securities, Realized Gain (Loss) |  | 0 | $ 33 | (769) | $ 8,816 |
Unrealized gain (loss) on equity securities |  | (35,709) | $ 2,276 | (3,702) | $ 12,307 |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  | $ 139,740 |  | 139,740 |  | 12,943
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  |  | 2,522 |  | 5,276
Equity Securities, FV-NI, Unrealized Gain |  |  |  | 949 |  | 1
Equity and debt securities |  |  |  |  |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  |  |  |  |  | 12,943
Metalla Royalty & Streaming Ltd. |  |  |  |  |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Proceeds from sale of equity method investments |  |  |  | 900 |  |
Equity method investment, realized gain on disposal |  |  |  | $ 800 |  |
Equity method investment, amount sold (in shares) |  | 83,556 |  | 83,556 |  |
Metalla Royalty & Streaming Ltd. | Equity securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Cost |  |  |  |  |  | 166
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  |  |  |  |  | 1,041
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  |  |  |  | 875
Equity Securities, FV-NI, Unrealized Gain |  |  |  |  |  | 0
Integra Resources Corp. [Member] | Equity securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Cost |  | $ 9,455 |  | $ 9,455 |  | 7,500
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  | 8,506 |  | 8,506 |  | 11,901
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  |  | 0 |  | 4,401
Equity Securities, FV-NI, Unrealized Gain |  |  |  | 949 |  | 0
Other Investments [Member] | Equity securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Cost |  | 2 |  | 2 |  | 2
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  | 2 |  | 2 |  | 1
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  |  | 0 |  | 0
Equity Securities, FV-NI, Unrealized Gain |  |  |  | 0 |  | 1
Victoria Gold Corp |  |  |  |  |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Asset acquisition, percentage of shares acquired | 17.80% |  |  |  |  |
Asset acquisition, number of common stock shares acquired | 11,067,714 |  |  |  |  |
Asset acquisition, entity shares issued in exchange agreement (in shares) | 12,785,485 |  |  |  |  |
Asset acquisition, percentage equity issued for exchange | 4.90% |  |  |  |  |
Victoria Gold Corp | Equity securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Cost |  | 128,710 |  | 128,710 |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  | 131,232 |  | 131,232 |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) |  |  |  | 2,522 |  |
Equity Securities, FV-NI, Unrealized Gain |  |  |  | 0 |  |
Level 3 | Equity securities |  |  |  |  |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  | $ 0 |  | $ 0 |  |
Level 3 | Equity and debt securities |  |  |  |  |  |
Investment in Marketable Securities (Textual) [Abstract] |  |  |  |  |  |
Marketable Securities, Noncurrent |  |  |  |  |  | $ 0

X
- Definition Asset Acquisition, Equity Interests Issued and Issuable, Entity Shares Issued In Exchange Agreement + References No definition available. + Details
Name: | cde_AssetAcquisitionEquityInterestsIssuedAndIssuableEntitySharesIssuedInExchangeAgreement
Namespace Prefix: | cde_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Asset Acquisition, Number of Common Stock Shares Acquired. + References No definition available. + Details
Name: | cde_AssetAcquisitionNumberOfCommonStockSharesAcquired
Namespace Prefix: | cde_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Asset Acquisition, Percentage Equity Issued For Exchange Agreement + References No definition available. + Details
Name: | cde_AssetAcquisitionPercentageEquityIssuedForExchangeAgreement
Namespace Prefix: | cde_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Asset Acquisition, Percentage of Shares Acquired + References No definition available. + Details
Name: | cde_AssetAcquisitionPercentageOfSharesAcquired
Namespace Prefix: | cde_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Equity Method Investment, Amount Sold, Shares + References No definition available. + Details
Name: | cde_EquityMethodInvestmentAmountSoldShares
Namespace Prefix: | cde_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Investments in marketable securities. + References No definition available. + Details
Name: | cde_InvestmentInMarketableSecuritiesTextualAbstract
Namespace Prefix: | cde_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of an equity method investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(7)(c)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(9)(a)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. + References No definition available. + Details
Name: | us-gaap_EquitySecuritiesFvNiCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117546-209714 + Details
Name: | us-gaap_EquitySecuritiesFvNiUnrealizedGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117546-209714 + Details
Name: | us-gaap_EquitySecuritiesFvNiUnrealizedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in marketable security, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_MarketableSecuritiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI). + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized gain (loss) on investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_MarketableSecuritiesUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=cde_EquityAndDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cde_MetallaRoyaltyStreamingLtd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cde_IntegraResourcesCorp.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cde_OtherEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cde_VictoriaGoldCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |