v3.26.1
Segment Information (Tables)
 3 Months Ended
Mar. 31, 2026
Segment Reporting [Abstract]  
Reconciliation of Assets from Division to Consolidated
The following table presents total assets at the division level:
March 31, 2026December 31, 2025
(Dollars in millions)
Seaborne$2,537.4 $2,543.4 
U.S. Thermal1,318.1 1,301.7 
Corporate and Other1,854.5 1,962.1 
Total assets$5,710.0 $5,807.2 
Reportable Segment Results
Reportable segment results were as follows:
Three Months Ended March 31, 2026
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
 (Dollars in millions)
Revenue$197.5 $283.0 $289.5 $184.5 $954.5 
Less Significant Segment Expenses:
Labor costs35.7 71.2 60.1 51.3 
Repair costs29.4 64.5 36.6 32.4 
Outside services23.2 101.6 38.3 32.7 
Commodities expense21.1 13.2 50.9 22.9 
Sales related costs39.5 69.0 63.8 11.9 
Other expenses (1)
0.1 (29.5)16.1 (4.5)
Adjusted EBITDA48.5 (7.0)23.7 37.8 103.0 
Additions to property, plant, equipment and mine development8.6 55.0 15.4 5.2 84.2 
Three Months Ended March 31, 2025
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
 (Dollars in millions)
Revenue$265.1 $220.1 $275.6 $168.7 $929.5 
Less Significant Segment Expenses:
Labor costs35.1 55.0 49.8 50.2 
Repair costs24.8 47.0 31.5 34.1 
Outside services26.8 72.1 31.1 35.8 
Commodities expense19.1 13.4 38.7 19.5 
Sales related costs54.6 54.0 75.3 10.0 
Other expenses (1)
20.5 (34.6)12.9 (13.8)
Adjusted EBITDA84.2 13.2 36.3 32.9 166.6 
Additions to property, plant, equipment and mine development8.5 53.2 3.9 4.6 70.2 
(1)    Other expenses primarily include lease expense, non-sales related taxes, insurance expense and joint facility charges; offset by credits related to the capitalization of costs to the condensed consolidated balance sheet.
Reconciliation of Segment Totals
A reconciliation of reportable segment totals follows:
Three Months Ended March 31,
20262025
 (Dollars in millions)
Revenue from reportable segments$954.5 $929.5 
Reconciling items
Corporate and Other18.87.5
Revenue$973.3 $937.0 
Adjusted EBITDA from reportable segments$103.0 $166.6 
Reconciling items
Corporate and Other (1)
(20.5)(22.6)
Depreciation, depletion and amortization(109.5)(92.1)
Asset retirement obligation expenses(13.6)(13.6)
Restructuring charges(1.1)(1.7)
Costs related to terminated acquisition(3.0)(2.4)
Changes in amortization of basis difference related to equity affiliates0.6 0.6 
Interest expense, net of capitalized interest(10.7)(11.5)
Interest income13.1 15.4 
Unrealized gains on foreign currency option contracts0.3 4.3 
Take-or-pay contract-based intangible recognition— 0.2 
(Loss) income from continuing operations before incomes taxes$(41.4)$43.2 
Additions to property, plant, equipment and mine development from reportable segments$84.2 $70.2 
Reconciling items
Corporate and Other1.20.2
Additions to property, plant, equipment and mine development$85.4 $70.4 
(1)    Corporate and Other includes selling and administrative expenses, results from equity method investments, trading and brokerage activities, minimum charges on certain transportation-related contracts, the closure of inactive mining sites, the impact of foreign currency remeasurement and certain commercial matters.