2024 Q4 Form 10-Q Financial Statement

#000155837024014411 Filed on November 05, 2024

View on sec.gov

Income Statement

Concept 2024 Q4 2024 Q3
Revenue $617.9M
YoY Change -17.02%
Cost Of Revenue $558.6M
YoY Change -6.42%
Gross Profit -$16.25M
YoY Change -119.28%
Gross Profit Margin -2.63%
Selling, General & Admin $20.60M
YoY Change -15.14%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $40.89M
YoY Change 11.37%
% of Gross Profit
Operating Expenses $20.60M
YoY Change -15.14%
Operating Profit -$14.50M
YoY Change -116.86%
Interest Expense $3.912M
YoY Change 25.38%
% of Operating Profit
Other Income/Expense, Net $1.667M
YoY Change -63.01%
Pretax Income -$12.83M
YoY Change -114.18%
Income Tax -$6.608M
% Of Pretax Income
Net Earnings -$6.221M
YoY Change -108.44%
Net Earnings / Revenue -1.01%
Basic Earnings Per Share -$0.34
Diluted Earnings Per Share -$0.34
COMMON SHARES
Basic Shares Outstanding 18.11M 18.08M
Diluted Shares Outstanding 18.10M

Balance Sheet

Concept 2024 Q4 2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $255.9M
YoY Change 19.85%
Cash & Equivalents $219.6M
Short-Term Investments $36.35M
Other Short-Term Assets $47.72M
YoY Change -7.98%
Inventory $235.1M
Prepaid Expenses
Receivables $240.0M
Other Receivables $8.580M
Total Short-Term Assets $788.4M
YoY Change -2.2%
LONG-TERM ASSETS
Property, Plant & Equipment $1.239B
YoY Change 3.2%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments $23.09M
YoY Change 8.53%
Other Assets $46.29M
YoY Change -10.28%
Total Long-Term Assets $1.582B
YoY Change 1.46%
TOTAL ASSETS
Total Short-Term Assets $788.4M
Total Long-Term Assets $1.582B
Total Assets $2.371B
YoY Change 0.21%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $153.2M
YoY Change -22.78%
Accrued Expenses $112.8M
YoY Change -16.57%
Deferred Revenue
YoY Change
Short-Term Debt $0.00
YoY Change
Long-Term Debt Due $129.2M
YoY Change 461.93%
Total Short-Term Liabilities $392.9M
YoY Change 10.52%
LONG-TERM LIABILITIES
Long-Term Debt $0.00
YoY Change -100.0%
Other Long-Term Liabilities $60.34M
YoY Change -20.83%
Total Long-Term Liabilities $60.34M
YoY Change -67.16%
TOTAL LIABILITIES
Total Short-Term Liabilities $392.9M
Total Long-Term Liabilities $60.34M
Total Liabilities $926.9M
YoY Change -4.41%
SHAREHOLDERS EQUITY
Retained Earnings $1.839B
YoY Change 5.85%
Common Stock $764.5M
YoY Change 6.59%
Preferred Stock
YoY Change
Treasury Stock (at cost) $1.194B
YoY Change 7.76%
Treasury Stock Shares
Shareholders Equity $1.444B
YoY Change
Total Liabilities & Shareholders Equity $2.371B
YoY Change 0.21%

Cashflow Statement

Concept 2024 Q4 2024 Q3
OPERATING ACTIVITIES
Net Income -$6.221M
YoY Change -108.44%
Depreciation, Depletion And Amortization $40.89M
YoY Change 11.37%
Cash From Operating Activities $24.91M
YoY Change -80.97%
INVESTING ACTIVITIES
Capital Expenditures $34.52M
YoY Change -22.25%
Acquisitions
YoY Change
Other Investing Activities -$4.258M
YoY Change -312.9%
Cash From Investing Activities -$38.78M
YoY Change -8.75%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -10.25M
YoY Change -90.41%
NET CHANGE
Cash From Operating Activities 24.91M
Cash From Investing Activities -38.78M
Cash From Financing Activities -10.25M
Net Change In Cash -24.11M
YoY Change 31.04%
FREE CASH FLOW
Cash From Operating Activities $24.91M
Capital Expenditures $34.52M
Free Cash Flow -$9.609M
YoY Change -111.11%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
dei Entity Central Index Key
EntityCentralIndexKey
0001037676
dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2024
dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q3
dei Amendment Flag
AmendmentFlag
false
CY2023Q4 us-gaap Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List
OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2023Q4 us-gaap Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List
FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2023Q4 us-gaap Finance Lease Liability Current Statement Of Financial Position Extensible List
FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#AccruedLiabilitiesCurrent
CY2023Q4 us-gaap Operating Lease Liability Current Statement Of Financial Position Extensible List
OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#AccruedLiabilitiesCurrent
CY2024Q3 us-gaap Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List
FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
CY2023Q4 us-gaap Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List
OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
CY2024Q3 us-gaap Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List
OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2024Q3 us-gaap Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List
FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherAssetsNoncurrent
CY2024Q3 us-gaap Finance Lease Liability Current Statement Of Financial Position Extensible List
FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#AccruedLiabilitiesCurrent
CY2024Q3 us-gaap Operating Lease Liability Current Statement Of Financial Position Extensible List
OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#AccruedLiabilitiesCurrent
CY2023Q4 us-gaap Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List
FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
CY2024Q3 us-gaap Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List
OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrent
dei Document Type
DocumentType
10-Q
dei Document Quarterly Report
DocumentQuarterlyReport
true
dei Document Period End Date
DocumentPeriodEndDate
2024-09-30
dei Document Transition Report
DocumentTransitionReport
false
dei Entity File Number
EntityFileNumber
1-13105
dei Entity Registrant Name
EntityRegistrantName
Arch Resources, Inc.
dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
43-0921172
dei Entity Address Address Line1
EntityAddressAddressLine1
One CityPlace Drive
dei Entity Address Address Line2
EntityAddressAddressLine2
Suite 300
dei Entity Address City Or Town
EntityAddressCityOrTown
St. Louis
dei Entity Address State Or Province
EntityAddressStateOrProvince
MO
dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
63141
dei City Area Code
CityAreaCode
314
dei Local Phone Number
LocalPhoneNumber
994-2700
dei Security12b Title
Security12bTitle
Common stock, $.01 par value
dei Trading Symbol
TradingSymbol
ARCH
dei Security Exchange Name
SecurityExchangeName
NYSE
dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
dei Entity Small Business
EntitySmallBusiness
false
dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
dei Entity Shell Company
EntityShellCompany
false
CY2024Q4 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
18108609
CY2024Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
617899000
CY2023Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
744601000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1906840000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
2371826000
CY2024Q3 us-gaap Cost Of Goods And Service Excluding Depreciation Depletion And Amortization
CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
558596000
CY2023Q3 us-gaap Cost Of Goods And Service Excluding Depreciation Depletion And Amortization
CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
596889000
us-gaap Cost Of Goods And Service Excluding Depreciation Depletion And Amortization
CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
1655003000
us-gaap Cost Of Goods And Service Excluding Depreciation Depletion And Amortization
CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
1774753000
CY2024Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
40890000
CY2023Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
36717000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
118149000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
108273000
CY2024Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5869000
CY2023Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5292000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
17608000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
15877000
CY2024Q3 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
20603000
CY2023Q3 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
24279000
us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
68708000
us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
73092000
CY2024Q3 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
7002000
us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
7002000
CY2024Q3 us-gaap Severance Costs1
SeveranceCosts1
6649000
us-gaap Severance Costs1
SeveranceCosts1
6649000
CY2024Q3 us-gaap Other Operating Income Expense Net
OtherOperatingIncomeExpenseNet
5461000
CY2023Q3 us-gaap Other Operating Income Expense Net
OtherOperatingIncomeExpenseNet
2858000
us-gaap Other Operating Income Expense Net
OtherOperatingIncomeExpenseNet
23854000
us-gaap Other Operating Income Expense Net
OtherOperatingIncomeExpenseNet
10037000
CY2024Q3 arch Operating Cost Expenses And Others
OperatingCostExpensesAndOthers
634148000
CY2023Q3 arch Operating Cost Expenses And Others
OperatingCostExpensesAndOthers
660319000
arch Operating Cost Expenses And Others
OperatingCostExpensesAndOthers
1849265000
arch Operating Cost Expenses And Others
OperatingCostExpensesAndOthers
1961958000
CY2024Q3 us-gaap Gross Profit
GrossProfit
-16249000
CY2023Q3 us-gaap Gross Profit
GrossProfit
84282000
us-gaap Gross Profit
GrossProfit
57575000
us-gaap Gross Profit
GrossProfit
409868000
CY2024Q3 us-gaap Interest Expense
InterestExpense
3912000
CY2023Q3 us-gaap Interest Expense
InterestExpense
3120000
us-gaap Interest Expense
InterestExpense
12161000
us-gaap Interest Expense
InterestExpense
10783000
CY2024Q3 us-gaap Other Nonoperating Income
OtherNonoperatingIncome
5665000
CY2023Q3 us-gaap Other Nonoperating Income
OtherNonoperatingIncome
4803000
us-gaap Other Nonoperating Income
OtherNonoperatingIncome
17168000
us-gaap Other Nonoperating Income
OtherNonoperatingIncome
12340000
CY2024Q3 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1753000
CY2023Q3 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1683000
us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
5007000
us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1557000
CY2024Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
-14496000
CY2023Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
85965000
us-gaap Operating Income Loss
OperatingIncomeLoss
62582000
us-gaap Operating Income Loss
OperatingIncomeLoss
411425000
CY2024Q3 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-1667000
CY2023Q3 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-4507000
us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-1096000
us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-5692000
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
-1126000
CY2024Q3 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
1667000
CY2023Q3 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
4507000
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
1096000
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
4566000
CY2024Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-12829000
CY2023Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
90472000
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
63678000
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
415991000
CY2024Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-6608000
CY2023Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
16781000
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-887000
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
66839000
CY2024Q3 us-gaap Net Income Loss
NetIncomeLoss
-6221000
CY2023Q3 us-gaap Net Income Loss
NetIncomeLoss
73691000
us-gaap Net Income Loss
NetIncomeLoss
64565000
us-gaap Net Income Loss
NetIncomeLoss
349152000
CY2024Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-0.34
CY2023Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
4.05
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
3.55
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
19.20
CY2024Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.34
CY2023Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
3.91
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
3.50
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
18.12
CY2024Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18097000
CY2023Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18187000
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18180000
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18189000
CY2024Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18097000
CY2023Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18840000
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18450000
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
19270000
CY2024Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.25
CY2023Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
3.97
us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
3.01
us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
9.53
CY2024Q3 us-gaap Net Income Loss
NetIncomeLoss
-6221000
CY2023Q3 us-gaap Net Income Loss
NetIncomeLoss
73691000
us-gaap Net Income Loss
NetIncomeLoss
64565000
us-gaap Net Income Loss
NetIncomeLoss
349152000
CY2024Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent
2006000
CY2023Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent
9770000
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent
6018000
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent
15560000
CY2024Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
427000
CY2023Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
2147000
us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
1281000
us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
3419000
CY2024Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
1579000
CY2023Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
7623000
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
4737000
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
12141000
CY2024Q3 us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent
192000
CY2023Q3 us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent
54000
us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent
201000
us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent
15000
CY2024Q3 us-gaap Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent
41000
CY2023Q3 us-gaap Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent
12000
us-gaap Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent
43000
us-gaap Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent
4000
CY2024Q3 us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
151000
CY2023Q3 us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
42000
us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
158000
us-gaap Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
11000
CY2024Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-1428000
CY2023Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-7581000
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-4579000
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-12130000
CY2024Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-7649000
CY2023Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
66110000
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
59986000
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
337022000
CY2024Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
219595000
CY2023Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
287807000
CY2024Q3 us-gaap Available For Sale Securities Debt Securities Current
AvailableForSaleSecuritiesDebtSecuritiesCurrent
36347000
CY2023Q4 us-gaap Available For Sale Securities Debt Securities Current
AvailableForSaleSecuritiesDebtSecuritiesCurrent
32724000
CY2024Q3 us-gaap Restricted Cash Current
RestrictedCashCurrent
1100000
CY2023Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
1100000
CY2024Q3 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
0
CY2023Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
0
CY2024Q3 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
239994000
CY2023Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
273522000
CY2024Q3 us-gaap Other Receivables
OtherReceivables
8580000
CY2023Q4 us-gaap Other Receivables
OtherReceivables
13700000
CY2024Q3 us-gaap Inventory Net
InventoryNet
235091000
CY2023Q4 us-gaap Inventory Net
InventoryNet
244261000
CY2024Q3 us-gaap Other Assets Current
OtherAssetsCurrent
47716000
CY2023Q4 us-gaap Other Assets Current
OtherAssetsCurrent
64653000
CY2024Q3 us-gaap Assets Current
AssetsCurrent
788423000
CY2023Q4 us-gaap Assets Current
AssetsCurrent
917767000
CY2024Q3 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
1238534000
CY2023Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
1228891000
CY2024Q3 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
126608000
CY2023Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
124024000
CY2024Q3 us-gaap Equity Method Investments
EquityMethodInvestments
23088000
CY2023Q4 us-gaap Equity Method Investments
EquityMethodInvestments
22815000
CY2024Q3 arch Sinking Fund For Asset Retirement Obligation Non Current
SinkingFundForAssetRetirementObligationNonCurrent
147932000
CY2023Q4 arch Sinking Fund For Asset Retirement Obligation Non Current
SinkingFundForAssetRetirementObligationNonCurrent
142266000
CY2024Q3 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
46293000
CY2023Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
48410000
CY2024Q3 arch Other Assets Non Current Total
OtherAssetsNonCurrentTotal
343921000
CY2023Q4 arch Other Assets Non Current Total
OtherAssetsNonCurrentTotal
337515000
CY2024Q3 us-gaap Assets
Assets
2370878000
CY2023Q4 us-gaap Assets
Assets
2484173000
CY2024Q3 us-gaap Accounts Payable Current
AccountsPayableCurrent
153189000
CY2023Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
205001000
CY2024Q3 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
112767000
CY2023Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
127617000
CY2024Q3 us-gaap Debt Current
DebtCurrent
126897000
CY2023Q4 us-gaap Debt Current
DebtCurrent
35343000
CY2024Q3 us-gaap Liabilities Current
LiabilitiesCurrent
392853000
CY2023Q4 us-gaap Liabilities Current
LiabilitiesCurrent
367961000
CY2023Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
105252000
CY2024Q3 us-gaap Mine Reclamation And Closing Liability Noncurrent
MineReclamationAndClosingLiabilityNoncurrent
267486000
CY2023Q4 us-gaap Mine Reclamation And Closing Liability Noncurrent
MineReclamationAndClosingLiabilityNoncurrent
255740000
CY2024Q3 us-gaap Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
816000
CY2023Q4 us-gaap Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
878000
CY2024Q3 us-gaap Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
46530000
CY2023Q4 us-gaap Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
47494000
CY2024Q3 us-gaap Workers Compensation Liability Noncurrent
WorkersCompensationLiabilityNoncurrent
158902000
CY2023Q4 us-gaap Workers Compensation Liability Noncurrent
WorkersCompensationLiabilityNoncurrent
154650000
CY2024Q3 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
60337000
CY2023Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
72742000
CY2024Q3 us-gaap Liabilities
Liabilities
926924000
CY2023Q4 us-gaap Liabilities
Liabilities
1004717000
CY2024Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2023Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2024Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
300000000
CY2023Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
300000000
CY2024Q3 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
30805000
CY2023Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
30557000
CY2024Q3 us-gaap Common Stock Value
CommonStockValue
308000
CY2023Q4 us-gaap Common Stock Value
CommonStockValue
306000
CY2024Q3 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
764202000
CY2023Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
720029000
CY2024Q3 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
1839125000
CY2023Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
1830018000
CY2024Q3 us-gaap Treasury Stock Common Shares
TreasuryStockCommonShares
12701000
CY2023Q4 us-gaap Treasury Stock Common Shares
TreasuryStockCommonShares
12197000
CY2024Q3 us-gaap Treasury Stock Value
TreasuryStockValue
1193884000
CY2023Q4 us-gaap Treasury Stock Value
TreasuryStockValue
1109679000
CY2024Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
34203000
CY2023Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
38782000
CY2024Q3 us-gaap Stockholders Equity
StockholdersEquity
1443954000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
1479456000
CY2024Q3 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
2370878000
CY2023Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
2484173000
us-gaap Profit Loss
ProfitLoss
64565000
us-gaap Profit Loss
ProfitLoss
349152000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
118149000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
108273000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
17608000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
15877000
us-gaap Increase Decrease In Deferred Income Taxes
IncreaseDecreaseInDeferredIncomeTaxes
1345000
us-gaap Increase Decrease In Deferred Income Taxes
IncreaseDecreaseInDeferredIncomeTaxes
-66561000
us-gaap Share Based Compensation
ShareBasedCompensation
15819000
us-gaap Share Based Compensation
ShareBasedCompensation
19699000
us-gaap Amortization Of Financing Costs And Discounts
AmortizationOfFinancingCostsAndDiscounts
2168000
us-gaap Amortization Of Financing Costs And Discounts
AmortizationOfFinancingCostsAndDiscounts
1317000
us-gaap Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
213000
us-gaap Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
714000
arch Reclamation Amount Recognized
ReclamationAmountRecognized
6038000
arch Reclamation Amount Recognized
ReclamationAmountRecognized
17642000
arch Contribution To Sinking Fund For Asset Retirement Obligations
ContributionToSinkingFundForAssetRetirementObligations
5667000
arch Contribution To Sinking Fund For Asset Retirement Obligations
ContributionToSinkingFundForAssetRetirementObligations
4421000
us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
-39936000
us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
49950000
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-9169000
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
10199000
us-gaap Increase Decrease In Other Accounts Payable And Accrued Liabilities
IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
-62824000
us-gaap Increase Decrease In Other Accounts Payable And Accrued Liabilities
IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
-31241000
us-gaap Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable
258000
us-gaap Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable
-999000
us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-20774000
us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-8105000
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
212359000
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
453818000
us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
126888000
us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
121030000
us-gaap Payments To Acquire Royalty Interests In Mining Properties
PaymentsToAcquireRoyaltyInterestsInMiningProperties
988000
us-gaap Payments To Acquire Royalty Interests In Mining Properties
PaymentsToAcquireRoyaltyInterestsInMiningProperties
1113000
arch Proceeds From Payments For Disposals And Divestitures
ProceedsFromPaymentsForDisposalsAndDivestitures
219000
arch Proceeds From Payments For Disposals And Divestitures
ProceedsFromPaymentsForDisposalsAndDivestitures
1363000
us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
41397000
us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
23386000
us-gaap Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
38244000
us-gaap Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
30417000
arch Purchases Of Investments Advances To Affiliates
PurchasesOfInvestmentsAdvancesToAffiliates
10330000
arch Purchases Of Investments Advances To Affiliates
PurchasesOfInvestmentsAdvancesToAffiliates
12210000
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-141140000
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-125959000
us-gaap Repayments Of Convertible Debt
RepaymentsOfConvertibleDebt
58430000
us-gaap Repayments Of Other Debt
RepaymentsOfOtherDebt
23717000
us-gaap Repayments Of Other Debt
RepaymentsOfOtherDebt
30568000
us-gaap Payments Of Financing Costs
PaymentsOfFinancingCosts
1516000
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
30747000
us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
122502000
us-gaap Payments Of Ordinary Dividends
PaymentsOfOrdinaryDividends
68944000
us-gaap Payments Of Ordinary Dividends
PaymentsOfOrdinaryDividends
183790000
us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
24339000
us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
27230000
us-gaap Proceeds From Warrant Exercises
ProceedsFromWarrantExercises
43949000
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-139431000
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-380821000
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-68212000
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-52962000
CY2023Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
288907000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
237159000
CY2024Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
220695000
CY2023Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
184197000
CY2024Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
219595000
CY2023Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
183097000
CY2024Q3 us-gaap Restricted Cash Current
RestrictedCashCurrent
1100000
CY2023Q3 us-gaap Restricted Cash Current
RestrictedCashCurrent
1100000
CY2024Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
220695000
CY2023Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
184197000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
1479456000
CY2024Q1 us-gaap Dividends
Dividends
30671000
CY2024Q1 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
607000
CY2024Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
94701
CY2024Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
16432000
CY2024Q1 us-gaap Treasury Stock Shares Retired
TreasuryStockSharesRetired
315721
CY2024Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
5588000
CY2024Q1 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
24259000
CY2024Q1 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
227981
CY2024Q1 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
2000
CY2024Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
54371000
CY2024Q1 us-gaap Stockholders Equity
StockholdersEquity
1467448000
CY2024Q2 us-gaap Dividends
Dividends
20072000
CY2024Q2 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
-289000
CY2024Q2 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
94367
CY2024Q2 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
15141000
CY2024Q2 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
4857000
CY2024Q2 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
80000
CY2024Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
13264000
CY2024Q2 us-gaap Stockholders Equity
StockholdersEquity
1450565000
CY2024Q3 us-gaap Dividends
Dividends
4526000
CY2024Q3 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
-261000
CY2024Q3 arch Treasury Stock Value Acquired Excise Taxes
TreasuryStockValueAcquiredExciseTaxes
8000
CY2024Q3 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
5374000
CY2024Q3 us-gaap Adjustments To Additional Paid In Capital Other
AdjustmentsToAdditionalPaidInCapitalOther
-63000
CY2024Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-7649000
CY2024Q3 us-gaap Stockholders Equity
StockholdersEquity
1443954000
CY2022Q4 us-gaap Stockholders Equity
StockholdersEquity
1365580000
CY2023Q1 us-gaap Dividends
Dividends
55140000
CY2023Q1 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
2234000
CY2023Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
131156
CY2023Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
19007000
CY2023Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
6767000
CY2023Q1 arch Stock Issued During Period Value Conversion Of Convertible Debt Repurchased
StockIssuedDuringPeriodValueConversionOfConvertibleDebtRepurchased
44486000
CY2023Q1 us-gaap Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
275053
CY2023Q1 us-gaap Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
3000
CY2023Q1 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
27055000
CY2023Q1 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
1037679
CY2023Q1 us-gaap Adjustments To Additional Paid In Capital Warrant Issued
AdjustmentsToAdditionalPaidInCapitalWarrantIssued
43729000
CY2023Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
195837000
CY2023Q1 us-gaap Stockholders Equity
StockholdersEquity
1463994000
CY2023Q2 us-gaap Dividends
Dividends
45011000
CY2023Q2 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
571000
CY2023Q2 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
623304
CY2023Q2 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
74231000
CY2023Q2 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
6439000
CY2023Q2 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
162000
CY2023Q2 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
29487
CY2023Q2 us-gaap Adjustments To Additional Paid In Capital Warrant Issued
AdjustmentsToAdditionalPaidInCapitalWarrantIssued
31000
CY2023Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
75075000
CY2023Q2 us-gaap Stockholders Equity
StockholdersEquity
1425564000
CY2023Q3 us-gaap Dividends
Dividends
71573000
CY2023Q3 arch Dividend Equivalents Earned Equity Instruments Other Than Options Grants
DividendEquivalentsEarnedEquityInstrumentsOtherThanOptionsGrants
2152000
CY2023Q3 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
215551
CY2023Q3 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
28482000
CY2023Q3 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
6493000
CY2023Q3 us-gaap Stock Repurchased And Retired During Period Value
StockRepurchasedAndRetiredDuringPeriodValue
13000
CY2023Q3 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
386782
CY2023Q3 us-gaap Adjustments To Additional Paid In Capital Warrant Issued
AdjustmentsToAdditionalPaidInCapitalWarrantIssued
203000
CY2023Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
66110000
CY2023Q3 us-gaap Stockholders Equity
StockholdersEquity
1396150000
CY2024Q3 us-gaap Severance Costs1
SeveranceCosts1
6600000
CY2024Q3 arch Restructuring And Related Cost Number Of Employees Accepted Voluntary Separation Package
RestructuringAndRelatedCostNumberOfEmployeesAcceptedVoluntarySeparationPackage
138
CY2024Q3 us-gaap Energy Related Inventory Coal
EnergyRelatedInventoryCoal
83654000
CY2023Q4 us-gaap Energy Related Inventory Coal
EnergyRelatedInventoryCoal
99174000
CY2024Q3 us-gaap Inventory Parts And Components Net Of Reserves
InventoryPartsAndComponentsNetOfReserves
151437000
CY2023Q4 us-gaap Inventory Parts And Components Net Of Reserves
InventoryPartsAndComponentsNetOfReserves
145087000
CY2024Q3 us-gaap Inventory Net
InventoryNet
235091000
CY2023Q4 us-gaap Inventory Net
InventoryNet
244261000
CY2024Q3 us-gaap Inventory Valuation Reserves
InventoryValuationReserves
1500000
CY2023Q4 us-gaap Inventory Valuation Reserves
InventoryValuationReserves
1600000
CY2024Q3 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
36137000
CY2024Q3 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
212000
CY2024Q3 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
2000
CY2024Q3 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
36347000
CY2023Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
32715000
CY2023Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
15000
CY2023Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
6000
CY2023Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
32724000
CY2024Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
0.0
CY2023Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
2200000
CY2024Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
1200000
CY2023Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
2300000
CY2024Q3 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
38481000
CY2023Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
37259000
CY2024Q3 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
36028000
CY2023Q4 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
51155000
CY2024Q3 us-gaap Interest Payable Current
InterestPayableCurrent
1393000
CY2023Q4 us-gaap Interest Payable Current
InterestPayableCurrent
2395000
CY2024Q3 us-gaap Workers Compensation Liability Current
WorkersCompensationLiabilityCurrent
16980000
CY2023Q4 us-gaap Workers Compensation Liability Current
WorkersCompensationLiabilityCurrent
18724000
CY2024Q3 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
5913000
CY2023Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
6089000
CY2024Q3 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
13972000
CY2023Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
11995000
CY2024Q3 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
112767000
CY2023Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
127617000
CY2024Q3 us-gaap Deferred Finance Costs Gross
DeferredFinanceCostsGross
1323000
CY2023Q4 us-gaap Deferred Finance Costs Gross
DeferredFinanceCostsGross
1511000
CY2024Q3 us-gaap Long Term Debt
LongTermDebt
126897000
CY2023Q4 us-gaap Long Term Debt
LongTermDebt
140595000
CY2024Q3 us-gaap Debt Current
DebtCurrent
126897000
CY2023Q4 us-gaap Debt Current
DebtCurrent
35343000
CY2023Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
105252000
CY2024Q1 us-gaap Payments Of Financing Costs
PaymentsOfFinancingCosts
1500000
us-gaap Treasury Stock Shares Retired
TreasuryStockSharesRetired
315721
CY2024Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.508
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.014
us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2024Q3 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2023Q3 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.186
us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.161
us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2023Q3 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2024Q3 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
36347000
CY2024Q3 us-gaap Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
147932000
CY2024Q3 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
184279000
CY2023Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
32724000
CY2023Q4 us-gaap Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
142266000
CY2023Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
174990000
CY2024Q3 us-gaap Debt Instrument Fair Value
DebtInstrumentFairValue
128200000
CY2023Q4 us-gaap Debt Instrument Fair Value
DebtInstrumentFairValue
142100000
CY2024Q3 us-gaap Net Income Loss
NetIncomeLoss
-6221000
CY2023Q3 us-gaap Net Income Loss
NetIncomeLoss
73691000
us-gaap Net Income Loss
NetIncomeLoss
64565000
us-gaap Net Income Loss
NetIncomeLoss
349152000
us-gaap Dilutive Securities Effect On Basic Earnings Per Share Other
DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
108000
CY2024Q3 us-gaap Net Income Loss Attributable To Parent Diluted
NetIncomeLossAttributableToParentDiluted
-6221000
CY2023Q3 us-gaap Net Income Loss Attributable To Parent Diluted
NetIncomeLossAttributableToParentDiluted
73691000
us-gaap Net Income Loss Attributable To Parent Diluted
NetIncomeLossAttributableToParentDiluted
64565000
us-gaap Net Income Loss Attributable To Parent Diluted
NetIncomeLossAttributableToParentDiluted
349260000
CY2024Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18097000
CY2023Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18187000
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18180000
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
18189000
CY2023Q3 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
653000
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
270000
us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
969000
us-gaap Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
112000
CY2024Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18097000
CY2023Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18840000
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
18450000
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
19270000
CY2020Q1 arch Additional Collateral Contingent Amount Self Insured
AdditionalCollateralContingentAmountSelfInsured
71100000
CY2020Q1 arch Threshold For Number Of Days To Post Additional Collateral
ThresholdForNumberOfDaysToPostAdditionalCollateral
P30D
CY2023Q1 arch Self Insured Operators Must Post Security Percentage
SelfInsuredOperatorsMustPostSecurityPercentage
1.20
CY2024Q3 arch Surety Bonds Outstanding
SuretyBondsOutstanding
488500000
CY2024Q3 us-gaap Deposits Assets Noncurrent
DepositsAssetsNoncurrent
5600000
arch Number Of Distinct Lines Of Business
NumberOfDistinctLinesOfBusiness
2
CY2024Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
617899000
CY2024Q3 arch Adjusted Ebitda
AdjustedEBITDA
44161000
CY2024Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
40890000
CY2024Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5869000
CY2024Q3 us-gaap Segment Expenditure Addition To Long Lived Assets
SegmentExpenditureAdditionToLongLivedAssets
34522000
CY2023Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
744601000
CY2023Q3 arch Adjusted Ebitda
AdjustedEBITDA
126291000
CY2023Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
36717000
CY2023Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5292000
CY2023Q3 us-gaap Segment Expenditure Addition To Long Lived Assets
SegmentExpenditureAdditionToLongLivedAssets
44424000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1906840000
arch Adjusted Ebitda
AdjustedEBITDA
206983000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
118149000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
17608000
us-gaap Segment Expenditure Addition To Long Lived Assets
SegmentExpenditureAdditionToLongLivedAssets
126888000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
2371826000
arch Adjusted Ebitda
AdjustedEBITDA
534018000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
108273000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
15877000
us-gaap Segment Expenditure Addition To Long Lived Assets
SegmentExpenditureAdditionToLongLivedAssets
121030000
CY2024Q3 us-gaap Net Income Loss
NetIncomeLoss
-6221000
CY2023Q3 us-gaap Net Income Loss
NetIncomeLoss
73691000
us-gaap Net Income Loss
NetIncomeLoss
64565000
us-gaap Net Income Loss
NetIncomeLoss
349152000
CY2024Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-6608000
CY2023Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
16781000
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-887000
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
66839000
CY2024Q3 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1753000
CY2023Q3 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1683000
us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
5007000
us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
1557000
CY2024Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
40890000
CY2023Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
36717000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
118149000
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
108273000
CY2024Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5869000
CY2023Q3 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
5292000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
17608000
us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
15877000
CY2024Q3 us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
7002000
us-gaap Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
7002000
CY2024Q3 us-gaap Severance Costs1
SeveranceCosts1
6649000
us-gaap Severance Costs1
SeveranceCosts1
6649000
CY2024Q3 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-1667000
CY2023Q3 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-4507000
us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-1096000
us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-5692000
us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
-1126000
CY2024Q3 arch Adjusted Ebitda
AdjustedEBITDA
44161000
CY2023Q3 arch Adjusted Ebitda
AdjustedEBITDA
126291000
arch Adjusted Ebitda
AdjustedEBITDA
206983000
arch Adjusted Ebitda
AdjustedEBITDA
534018000
CY2024Q3 arch Ebitd From Idled Or Otherwise Disposed Operations
EBITDFromIdledOrOtherwiseDisposedOperations
4101000
CY2023Q3 arch Ebitd From Idled Or Otherwise Disposed Operations
EBITDFromIdledOrOtherwiseDisposedOperations
30000
arch Ebitd From Idled Or Otherwise Disposed Operations
EBITDFromIdledOrOtherwiseDisposedOperations
11493000
arch Ebitd From Idled Or Otherwise Disposed Operations
EBITDFromIdledOrOtherwiseDisposedOperations
8726000
CY2024Q3 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
20603000
CY2023Q3 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
24279000
us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
68708000
us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
73092000
CY2024Q3 arch Other Income Expense
OtherIncomeExpense
-1851000
CY2023Q3 arch Other Income Expense
OtherIncomeExpense
1095000
arch Other Income Expense
OtherIncomeExpense
-1360000
arch Other Income Expense
OtherIncomeExpense
7189000
CY2024Q3 arch Segment Adjusted Ebitd From Coal Operations
SegmentAdjustedEBITDFromCoalOperations
67014000
CY2023Q3 arch Segment Adjusted Ebitd From Coal Operations
SegmentAdjustedEBITDFromCoalOperations
151695000
arch Segment Adjusted Ebitd From Coal Operations
SegmentAdjustedEBITDFromCoalOperations
285824000
arch Segment Adjusted Ebitd From Coal Operations
SegmentAdjustedEBITDFromCoalOperations
623025000
CY2024Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
617899000
CY2023Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
744601000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1906840000
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
2371826000
CY2024Q3 arch Revenue Remaining Performance Obligation Mass
RevenueRemainingPerformanceObligationMass
13400000
CY2024Q3 arch Revenue Remaining Performance Obligation Variable Price Volume
RevenueRemainingPerformanceObligationVariablePriceVolume
1800000
CY2024Q3 arch Revenue Remaining Performance Obligation Fixed Price Volume
RevenueRemainingPerformanceObligationFixedPriceVolume
97200000
CY2024Q3 arch Revenue Remaining Performance Obligation Variable Price Volume
RevenueRemainingPerformanceObligationVariablePriceVolume
2200000
CY2024Q3 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
7644000
CY2023Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
9626000
CY2024Q3 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
648000
CY2023Q4 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
1621000
CY2024Q3 arch Lease Assets
LeaseAssets
8292000
CY2023Q4 arch Lease Assets
LeaseAssets
11247000
CY2024Q3 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
2346000
CY2023Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
1041000
CY2024Q3 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
2888000
CY2023Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
2789000
CY2023Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
2079000
CY2024Q3 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
5137000
CY2023Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
7351000
CY2024Q3 arch Lease Liabilities
LeaseLiabilities
10371000
CY2023Q4 arch Lease Liabilities
LeaseLiabilities
13260000
CY2024Q3 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P2Y7M28D
CY2023Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P3Y3M25D
CY2024Q3 us-gaap Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
P0Y6M
CY2023Q4 us-gaap Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
P1Y3M
CY2024Q3 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.055
CY2023Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.055
CY2024Q3 us-gaap Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
0.064
CY2023Q4 us-gaap Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
0.064
CY2024Q3 us-gaap Operating Lease Cost
OperatingLeaseCost
777000
CY2023Q3 us-gaap Operating Lease Cost
OperatingLeaseCost
801000
us-gaap Operating Lease Cost
OperatingLeaseCost
2366000
us-gaap Operating Lease Cost
OperatingLeaseCost
2462000
CY2024Q3 us-gaap Operating Lease Payments
OperatingLeasePayments
845000
CY2023Q3 us-gaap Operating Lease Payments
OperatingLeasePayments
851000
us-gaap Operating Lease Payments
OperatingLeasePayments
2499000
us-gaap Operating Lease Payments
OperatingLeasePayments
2555000
CY2024Q3 arch Finance Lease Cost
FinanceLeaseCost
393000
CY2023Q3 arch Finance Lease Cost
FinanceLeaseCost
393000
arch Finance Lease Cost
FinanceLeaseCost
1179000
arch Finance Lease Cost
FinanceLeaseCost
1179000
CY2024Q3 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
303000
CY2023Q3 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
303000
us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
908000
us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
908000
CY2024Q3 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
782000
CY2024Q3 us-gaap Finance Lease Liability Payments Remainder Of Fiscal Year
FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear
303000
CY2024Q3 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
3266000
CY2024Q3 us-gaap Finance Lease Liability Payments Due Next Twelve Months
FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
2111000
CY2024Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
3080000
CY2024Q3 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
1533000
CY2024Q3 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
8661000
CY2024Q3 us-gaap Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
2414000
CY2024Q3 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
636000
CY2024Q3 us-gaap Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
68000
CY2024Q3 us-gaap Operating Lease Liability
OperatingLeaseLiability
8025000
CY2024Q3 us-gaap Finance Lease Liability
FinanceLeaseLiability
2346000
CY2024Q3 ecd Non Rule10b51 Arr Adopted Flag
NonRule10b51ArrAdoptedFlag
false
CY2024Q3 ecd Non Rule10b51 Arr Trmntd Flag
NonRule10b51ArrTrmntdFlag
false
CY2024Q3 ecd Rule10b51 Arr Adopted Flag
Rule10b51ArrAdoptedFlag
false
CY2024Q3 ecd Rule10b51 Arr Trmntd Flag
Rule10b51ArrTrmntdFlag
false

Files In Submission

Name View Source Status
0001558370-24-014411-index-headers.html Edgar Link pending
0001558370-24-014411-index.html Edgar Link pending
0001558370-24-014411.txt Edgar Link pending
0001558370-24-014411-xbrl.zip Edgar Link pending
arch-20240930.xsd Edgar Link pending
arch-20240930x10q.htm Edgar Link pending
arch-20240930x10q002.jpg Edgar Link pending
arch-20240930xex31d1.htm Edgar Link pending
arch-20240930xex31d2.htm Edgar Link pending
arch-20240930xex32d1.htm Edgar Link pending
arch-20240930xex32d2.htm Edgar Link pending
arch-20240930xex95.htm Edgar Link pending
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
arch-20240930_cal.xml Edgar Link unprocessable
arch-20240930_def.xml Edgar Link unprocessable
arch-20240930_lab.xml Edgar Link unprocessable
arch-20240930_pre.xml Edgar Link unprocessable
FilingSummary.xml Edgar Link unprocessable
arch-20240930x10q_htm.xml Edgar Link completed
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending