XML 74 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Sep. 30, 2014
Mar. 31, 2014
Dec. 31, 2014
Segment Reporting Information [Line Items]        
Consolidated revenue $ 317,553us-gaap_Revenues   $ 319,066us-gaap_Revenues  
Adjusted EBITDA 40,077cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization   39,699cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization  
Interest expense, net (12,619)us-gaap_InterestRevenueExpenseNet   (37,870)us-gaap_InterestRevenueExpenseNet  
Depreciation and depletion (24,536)us-gaap_Depreciation   (26,928)us-gaap_Depreciation  
Amortization 928us-gaap_AmortizationOfIntangibleAssets   0us-gaap_AmortizationOfIntangibleAssets  
Accretion (3,541)us-gaap_AssetRetirementObligationAccretionExpense   (4,130)us-gaap_AssetRetirementObligationAccretionExpense  
Income tax benefit (expense) 280us-gaap_IncomeTaxExpenseBenefit   6,490us-gaap_IncomeTaxExpenseBenefit  
Tax agreement benefit (expense) 0cld_TaxAgreementExpense   0cld_TaxAgreementExpense  
Derivative financial instruments        
Exclusion of fair value mark-to-market gains (losses) (4,785)us-gaap_DerivativeGainLossOnDerivativeNet   12,734us-gaap_DerivativeGainLossOnDerivativeNet  
Inclusion of cash amounts (received) paid 2,029cld_DerivativeInstrumentsCashSettlements   (5,270)cld_DerivativeInstrumentsCashSettlements  
Total derivative financial instruments (2,756)us-gaap_UnrealizedGainLossOnDerivatives   7,464us-gaap_UnrealizedGainLossOnDerivatives  
FN - Excludes premiums paid at contract inception 1,984cld_PrepaidPremiumsOnDerivativeFinancialInstruments   0cld_PrepaidPremiumsOnDerivativeFinancialInstruments  
Gain on sale of Decker Mine interest 0cld_Incomelossfromindividuallysignificantcomponentdisposedoforheldforsaleexcludingdiscontinuedoperationsbeforeincometax 74,300cld_Incomelossfromindividuallysignificantcomponentdisposedoforheldforsaleexcludingdiscontinuedoperationsbeforeincometax 0cld_Incomelossfromindividuallysignificantcomponentdisposedoforheldforsaleexcludingdiscontinuedoperationsbeforeincometax  
Net income (loss) (4,680)us-gaap_NetIncomeLoss   (15,626)us-gaap_NetIncomeLoss  
Total Assets        
Total Assets 2,143,641us-gaap_Assets     2,159,918us-gaap_Assets
Capital Expenditures        
Capital Expenditures 7,155cld_CapitalExpenditure   6,478cld_CapitalExpenditure  
Intersegment Elimination        
Segment Reporting Information [Line Items]        
Consolidated revenue (18,917)us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
  (13,420)us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Adjusted EBITDA (656)cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
  (351)cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Total Assets        
Total Assets (82)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
    (307)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
Capital Expenditures        
Capital Expenditures 0cld_CapitalExpenditure
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
  0cld_CapitalExpenditure
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Reportable Geographical Components [Member]        
Segment Reporting Information [Line Items]        
Consolidated revenue 317,553us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
  319,066us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
 
United States | Reportable Geographical Components [Member]        
Segment Reporting Information [Line Items]        
Consolidated revenue 258,134us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
  267,230us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_US
 
South Korea | Reportable Geographical Components [Member]        
Segment Reporting Information [Line Items]        
Consolidated revenue 50,011us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_KR
  50,943us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= country_KR
 
Other | Reportable Geographical Components [Member]        
Segment Reporting Information [Line Items]        
Consolidated revenue 9,408us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= cld_OtherMember1Member
  893us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ReportableGeographicalComponentsMember
/ us-gaap_StatementGeographicalAxis
= cld_OtherMember1Member
 
Owned and Operated Mines        
Segment Reporting Information [Line Items]        
Consolidated revenue 261,799us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
  269,599us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
 
Adjusted EBITDA 44,296cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
  41,196cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
 
Total Assets        
Total Assets 1,680,946us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
    1,704,267us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
Capital Expenditures        
Capital Expenditures 6,452cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
  5,645cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= cld_OwnedAndOperatedMinesMember
 
Logistics and Related Activities        
Segment Reporting Information [Line Items]        
Consolidated revenue 69,439us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
  58,514us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
 
Adjusted EBITDA (8,338)cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
  371cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
 
Total Assets        
Total Assets 100,205us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
    92,347us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
Capital Expenditures        
Capital Expenditures 0cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
  0cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= cld_LogisticsAndRelatedActivitiesMember
 
Corporate and Other        
Segment Reporting Information [Line Items]        
Consolidated revenue 5,231us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
  4,373us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
 
Adjusted EBITDA 4,119cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
  (1,868)cld_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
 
Total Assets        
Total Assets 362,572us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
    363,611us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Capital Expenditures        
Capital Expenditures $ 703cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
  $ 833cld_CapitalExpenditure
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember