3.26.1 html 131 314 1 false 47 0 false 7 false false R1.htm 000090 - Document - Document and Entity Information Sheet http://www.coronadocoal.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 000100 - Statement - Condensed Consolidated Balance Sheets Sheet http://www.coronadocoal.com/role/CondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 000105 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://www.coronadocoal.com/role/CondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 000200 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income Sheet http://www.coronadocoal.com/role/CondensedConsolidatedStatementsOfOperationsAndComprehensiveIncome Condensed Consolidated Statements of Operations and Comprehensive Income Statements 4 false false R5.htm 000300 - Statement - Condensed Consolidated Statements of Stockholders' Equity Sheet http://www.coronadocoal.com/role/CondensedConsolidatedStatementsOfStockholdersEquity Condensed Consolidated Statements of Stockholders' Equity Statements 5 false false R6.htm 000400 - Statement - Condensed Consolidated Statements of Cash Flows Sheet http://www.coronadocoal.com/role/CondensedConsolidatedStatementsOfCashFlows Condensed Consolidated Statements of Cash Flows Statements 6 false false R7.htm 010101 - Disclosure - Description of Business, Basis of Presentation Sheet http://www.coronadocoal.com/role/DescriptionOfBusinessBasisOfPresentation Description of Business, Basis of Presentation Notes 7 false false R8.htm 010201 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.coronadocoal.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 010301 - Disclosure - Segment Information Sheet http://www.coronadocoal.com/role/SegmentInformation Segment Information Notes 9 false false R10.htm 010400 - Disclosure - Impairment of Assets Sheet http://www.coronadocoal.com/role/ImpairmentOfAssets Impairment of Assets Notes 10 false false R11.htm 010401 - Disclosure - Inventories Sheet http://www.coronadocoal.com/role/Inventories Inventories Notes 11 false false R12.htm 010501 - Disclosure - Other Assets Sheet http://www.coronadocoal.com/role/OtherAssets Other Assets Notes 12 false false R13.htm 010601 - Disclosure - Property, Plant and Equipment Sheet http://www.coronadocoal.com/role/PropertyPlantAndEquipment Property, Plant and Equipment Notes 13 false false R14.htm 010701 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://www.coronadocoal.com/role/AccruedExpensesAndOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 14 false false R15.htm 010801 - Disclosure - Leases Sheet http://www.coronadocoal.com/role/Leases Leases Notes 15 false false R16.htm 010901 - Disclosure - Interest Bearing Liabilities Sheet http://www.coronadocoal.com/role/InterestBearingLiabilities Interest Bearing Liabilities Notes 16 false false R17.htm 011000 - Disclosure - Stanwell Liabilities Sheet http://www.coronadocoal.com/role/StanwellLiabilities Stanwell Liabilities Notes 17 false false R18.htm 011001 - Disclosure - Other Financial Liabilities Sheet http://www.coronadocoal.com/role/OtherFinancialLiabilities Other Financial Liabilities Notes 18 false false R19.htm 011101 - Disclosure - Income Taxes Sheet http://www.coronadocoal.com/role/IncomeTaxes Income Taxes Notes 19 false false R20.htm 011201 - Disclosure - Loss per Share Sheet http://www.coronadocoal.com/role/LossPerShare Loss per Share Notes 20 false false R21.htm 011301 - Disclosure - Derivatives and Fair Value Measurement Sheet http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurement Derivatives and Fair Value Measurement Notes 21 false false R22.htm 011401 - Disclosure - Accumulated Other Comprehensive Losses Sheet http://www.coronadocoal.com/role/AccumulatedOtherComprehensiveLosses Accumulated Other Comprehensive Losses Notes 22 false false R23.htm 011501 - Disclosure - Commitments Sheet http://www.coronadocoal.com/role/Commitments Commitments Notes 23 false false R24.htm 011601 - Disclosure - Contingencies Sheet http://www.coronadocoal.com/role/Contingencies Contingencies Notes 24 false false R25.htm 020102 - Disclosure - Description of Business, Basis of Presentation (Policy) Sheet http://www.coronadocoal.com/role/DescriptionOfBusinessBasisOfPresentationPolicy Description of Business, Basis of Presentation (Policy) Policies http://www.coronadocoal.com/role/SummaryOfSignificantAccountingPolicies 25 false false R26.htm 020202 - Disclosure - Summary of Significant Accounting Policies (Policy) Sheet http://www.coronadocoal.com/role/SummaryOfSignificantAccountingPoliciesPolicy Summary of Significant Accounting Policies (Policy) Policies http://www.coronadocoal.com/role/SummaryOfSignificantAccountingPolicies 26 false false R27.htm 030303 - Disclosure - Segment Information (Tables) Sheet http://www.coronadocoal.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.coronadocoal.com/role/SegmentInformation 27 false false R28.htm 030403 - Disclosure - Inventories (Tables) Sheet http://www.coronadocoal.com/role/InventoriesTables Inventories (Tables) Tables http://www.coronadocoal.com/role/Inventories 28 false false R29.htm 030503 - Disclosure - Other Assets (Tables) Sheet http://www.coronadocoal.com/role/OtherAssetsTables Other Assets (Tables) Tables http://www.coronadocoal.com/role/OtherAssets 29 false false R30.htm 030603 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://www.coronadocoal.com/role/PropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) Tables http://www.coronadocoal.com/role/PropertyPlantAndEquipment 30 false false R31.htm 030703 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://www.coronadocoal.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://www.coronadocoal.com/role/AccruedExpensesAndOtherCurrentLiabilities 31 false false R32.htm 030803 - Disclosure - Leases (Tables) Sheet http://www.coronadocoal.com/role/LeasesTables Leases (Tables) Tables http://www.coronadocoal.com/role/Leases 32 false false R33.htm 030903 - Disclosure - Interest Bearing Liabilities (Tables) Sheet http://www.coronadocoal.com/role/InterestBearingLiabilitiesTables Interest Bearing Liabilities (Tables) Tables http://www.coronadocoal.com/role/InterestBearingLiabilities 33 false false R34.htm 031000 - Disclosure - Stanwell Liabilities (Tables) Sheet http://www.coronadocoal.com/role/StanwellLiabilitiesTables Stanwell Liabilities (Tables) Tables http://www.coronadocoal.com/role/StanwellLiabilities 34 false false R35.htm 031001 - Disclosure - Other Financial Liabilities (Tables) Sheet http://www.coronadocoal.com/role/OtherFinancialLiabilitiesTables Other Financial Liabilities (Tables) Tables http://www.coronadocoal.com/role/OtherFinancialLiabilities 35 false false R36.htm 031203 - Disclosure - Loss per Share (Tables) Sheet http://www.coronadocoal.com/role/LossPerShareTables Loss per Share (Tables) Tables http://www.coronadocoal.com/role/LossPerShare 36 false false R37.htm 031303 - Disclosure - Derivatives and Fair Value Measurement (Tables) Sheet http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurementTables Derivatives and Fair Value Measurement (Tables) Tables http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurement 37 false false R38.htm 031403 - Disclosure - Accumulated Other Comprehensive Losses (Tables) Sheet http://www.coronadocoal.com/role/AccumulatedOtherComprehensiveLossesTables Accumulated Other Comprehensive Losses (Tables) Tables http://www.coronadocoal.com/role/AccumulatedOtherComprehensiveLosses 38 false false R39.htm 031503 - Disclosure - Commitments (Tables) Sheet http://www.coronadocoal.com/role/CommitmentsTables Commitments (Tables) Tables http://www.coronadocoal.com/role/Commitments 39 false false R40.htm 040101 - Disclosure - Description of Business, Basis of Presentation (Narrative) (Details) Sheet http://www.coronadocoal.com/role/DescriptionOfBusinessBasisOfPresentationNarrativeDetails Description of Business, Basis of Presentation (Narrative) (Details) Details http://www.coronadocoal.com/role/DescriptionOfBusinessBasisOfPresentationPolicy 40 false false R41.htm 040300 - Disclosure - Segment Information (Narrative) (Details) Sheet http://www.coronadocoal.com/role/SegmentInformationNarrativeDetails Segment Information (Narrative) (Details) Details http://www.coronadocoal.com/role/SegmentInformationTables 41 false false R42.htm 040301 - Disclosure - Segment Information (Reportable Segment Results) (Details) Sheet http://www.coronadocoal.com/role/SegmentInformationReportableSegmentResultsDetails Segment Information (Reportable Segment Results) (Details) Details http://www.coronadocoal.com/role/SegmentInformationTables 42 false false R43.htm 040302 - Disclosure - Segment Information (Reconciliation of EBITDA to Net Income) (Details) Sheet http://www.coronadocoal.com/role/SegmentInformationReconciliationOfEBITDAToNetIncomeDetails Segment Information (Reconciliation of EBITDA to Net Income) (Details) Details http://www.coronadocoal.com/role/SegmentInformationTables 43 false false R44.htm 040303 - Disclosure - Segment Information (Reconciliation of Capital Expenditures) (Details) Sheet http://www.coronadocoal.com/role/SegmentInformationReconciliationOfCapitalExpendituresDetails Segment Information (Reconciliation of Capital Expenditures) (Details) Details http://www.coronadocoal.com/role/SegmentInformationTables 44 false false R45.htm 040304 - Disclosure - Segment Information (Disaggregation of Revenue) (Details) Sheet http://www.coronadocoal.com/role/SegmentInformationDisaggregationOfRevenueDetails Segment Information (Disaggregation of Revenue) (Details) Details http://www.coronadocoal.com/role/SegmentInformationTables 45 false false R46.htm 040400 - Disclosure - Impairment of Assets (Narrative) (Details) Sheet http://www.coronadocoal.com/role/ImpairmentOfAssetsNarrativeDetails Impairment of Assets (Narrative) (Details) Details http://www.coronadocoal.com/role/ImpairmentOfAssets 46 false false R47.htm 040401 - Disclosure - Inventories (Schedule of Inventories) (Details) Sheet http://www.coronadocoal.com/role/InventoriesScheduleOfInventoriesDetails Inventories (Schedule of Inventories) (Details) Details http://www.coronadocoal.com/role/InventoriesTables 47 false false R48.htm 040501 - Disclosure - Other Assets (Schedule of Other Assets) (Details) Sheet http://www.coronadocoal.com/role/OtherAssetsScheduleOfOtherAssetsDetails Other Assets (Schedule of Other Assets) (Details) Details http://www.coronadocoal.com/role/OtherAssetsTables 48 false false R49.htm 040602 - Disclosure - Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) Sheet http://www.coronadocoal.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) Details http://www.coronadocoal.com/role/PropertyPlantAndEquipmentTables 49 false false R50.htm 040701 - Disclosure - Accrued Expenses and Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) Sheet http://www.coronadocoal.com/role/AccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetails Accrued Expenses and Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) Details http://www.coronadocoal.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables 50 false false R51.htm 040801 - Disclosure - Leases (Narrative) (Details) Sheet http://www.coronadocoal.com/role/LeasesNarrativeDetails Leases (Narrative) (Details) Details http://www.coronadocoal.com/role/LeasesTables 51 false false R52.htm 040802 - Disclosure - Leases (Information Related To Right-Of Use Assets And Related Lease Liabilities) (Details) Sheet http://www.coronadocoal.com/role/LeasesInformationRelatedToRightOfUseAssetsAndRelatedLeaseLiabilitiesDetails Leases (Information Related To Right-Of Use Assets And Related Lease Liabilities) (Details) Details http://www.coronadocoal.com/role/LeasesTables 52 false false R53.htm 040803 - Disclosure - Leases (Maturities Of Lease Liabilities) (Details) Sheet http://www.coronadocoal.com/role/LeasesMaturitiesOfLeaseLiabilitiesDetails Leases (Maturities Of Lease Liabilities) (Details) Details http://www.coronadocoal.com/role/LeasesTables 53 false false R54.htm 040901 - Disclosure - Interest Bearing Liabilities (Narrative) (Details) Sheet http://www.coronadocoal.com/role/InterestBearingLiabilitiesNarrativeDetails Interest Bearing Liabilities (Narrative) (Details) Details http://www.coronadocoal.com/role/InterestBearingLiabilitiesTables 54 false false R55.htm 040902 - Disclosure - Interest Bearing Liabilities (Summary of Interest Bearing Liabilities) (Details) Sheet http://www.coronadocoal.com/role/InterestBearingLiabilitiesSummaryOfInterestBearingLiabilitiesDetails Interest Bearing Liabilities (Summary of Interest Bearing Liabilities) (Details) Details http://www.coronadocoal.com/role/InterestBearingLiabilitiesTables 55 false false R56.htm 041001 - Disclosure - Stanwell Liabilities (Narrative) (Details) Sheet http://www.coronadocoal.com/role/StanwellLiabilitiesNarrativeDetails Stanwell Liabilities (Narrative) (Details) Details http://www.coronadocoal.com/role/StanwellLiabilitiesTables 56 false false R57.htm 041002 - Disclosure - Stanwell Liabilities (Schedule of Contract Obligations) (Details) Sheet http://www.coronadocoal.com/role/StanwellLiabilitiesScheduleOfContractObligationsDetails Stanwell Liabilities (Schedule of Contract Obligations) (Details) Details http://www.coronadocoal.com/role/StanwellLiabilitiesTables 57 false false R58.htm 041003 - Disclosure - Other Financial Liabilities (Narrative) (Details) Sheet http://www.coronadocoal.com/role/OtherFinancialLiabilitiesNarrativeDetails Other Financial Liabilities (Narrative) (Details) Details http://www.coronadocoal.com/role/OtherFinancialLiabilitiesTables 58 false false R59.htm 041004 - Disclosure - Other Financial Liabilities (Summary of Other Financial Liabilities) (Details) Sheet http://www.coronadocoal.com/role/OtherFinancialLiabilitiesSummaryOfOtherFinancialLiabilitiesDetails Other Financial Liabilities (Summary of Other Financial Liabilities) (Details) Details http://www.coronadocoal.com/role/OtherFinancialLiabilitiesTables 59 false false R60.htm 041101 - Disclosure - Income Taxes (Narrative) (Details) Sheet http://www.coronadocoal.com/role/IncomeTaxesNarrativeDetails Income Taxes (Narrative) (Details) Details http://www.coronadocoal.com/role/IncomeTaxes 60 false false R61.htm 041201 - Disclosure - Loss per Share (Schedule of Loss Per Share) (Details) Sheet http://www.coronadocoal.com/role/LossPerShareScheduleOfLossPerShareDetails Loss per Share (Schedule of Loss Per Share) (Details) Details http://www.coronadocoal.com/role/LossPerShareTables 61 false false R62.htm 041301 - Disclosure - Derivatives and Fair Value Measurement (Narrative) (Details) Sheet http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurementNarrativeDetails Derivatives and Fair Value Measurement (Narrative) (Details) Details http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurementTables 62 false false R63.htm 041302 - Disclosure - Derivatives and Fair Value Measurement (Outstanding Foreign Currency Contracts) (Details) Sheet http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurementOutstandingForeignCurrencyContractsDetails Derivatives and Fair Value Measurement (Outstanding Foreign Currency Contracts) (Details) Details http://www.coronadocoal.com/role/DerivativesAndFairValueMeasurementTables 63 false false R64.htm 041401 - Disclosure - Accumulated Other Comprehensive Losses (Schedule of Accumulated Other Comprehensive Losses) (Details) Sheet http://www.coronadocoal.com/role/AccumulatedOtherComprehensiveLossesScheduleOfAccumulatedOtherComprehensiveLossesDetails Accumulated Other Comprehensive Losses (Schedule of Accumulated Other Comprehensive Losses) (Details) Details http://www.coronadocoal.com/role/AccumulatedOtherComprehensiveLossesTables 64 false false R65.htm 041501 - Disclosure - Commitments (Narrative) (Details) Sheet http://www.coronadocoal.com/role/CommitmentsNarrativeDetails Commitments (Narrative) (Details) Details http://www.coronadocoal.com/role/CommitmentsTables 65 false false R66.htm 041502 - Disclosure - Commitments (Future Minimum Royalties) (Details) Sheet http://www.coronadocoal.com/role/CommitmentsFutureMinimumRoyaltiesDetails Commitments (Future Minimum Royalties) (Details) Details http://www.coronadocoal.com/role/CommitmentsTables 66 false false R67.htm 041601 - Disclosure - Contingencies (Narrative) (Details) Sheet http://www.coronadocoal.com/role/ContingenciesNarrativeDetails Contingencies (Narrative) (Details) Details http://www.coronadocoal.com/role/Contingencies 67 false false R68.htm 042001 - Disclosure - Insider Trading Arrangements (Details) Sheet http://www.coronadocoal.com/role/InsiderTradingArrangementsDetails Insider Trading Arrangements (Details) Details 68 false false All Reports Book All Reports Form10q2026q1.htm c561-20260331.xsd c561-20260331_cal.xml c561-20260331_def.xml c561-20260331_lab.xml c561-20260331_pre.xml Form10q2026q1p1i0.jpg Form10q2026q1p2i0.jpg Form10q2026q1p2i1.jpg http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true