Segment Information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Reportable Segment Results

Reportable segment results were as follows:

	Three Months Ended March 31,
	2024		2023
	(Dollars in millions)
Revenue:
Seaborne Thermal	$	283.9	$	346.5
Seaborne Metallurgical	247.0		288.4
Powder River Basin	254.1		305.3
Other U.S. Thermal	191.6		249.4
Corporate and Other	7.0		174.4
Total	$	983.6	$	1,364.0
Adjusted EBITDA:
Seaborne Thermal	$	93.8	$	164.0
Seaborne Metallurgical	48.3		90.8
Powder River Basin	16.4		35.8
Other U.S. Thermal	46.5		64.2
Corporate and Other	(44.5)		35.8
Total	$	160.5	$	390.6

Reconciliation of Consolidated (Loss) Income from Continuing Operations, Net of Income Taxes to Adjusted EBITDA

A reconciliation of consolidated income from continuing operations, net of income taxes to Adjusted EBITDA follows:

	Three Months Ended March 31,
	2024		2023
	(Dollars in millions)
Income from continuing operations, net of income taxes	$	45.7	$	284.1
Depreciation, depletion and amortization	79.8		76.3
Asset retirement obligation expenses	12.9		15.4
Restructuring charges	0.1		0.1
Asset impairment	—		2.0
Provision for NARM loss	1.8		—
Changes in amortization of basis difference related to equity affiliates	(0.4)		(0.3)
Interest expense	14.7		18.4
Net loss on early debt extinguishment	—		6.8
Interest income	(19.2)		(13.1)
Unrealized gains on derivative contracts related to forecasted sales	—		(118.7)
Unrealized losses on foreign currency option contracts	5.7		2.2
Take-or-pay contract-based intangible recognition	(0.7)		(0.6)
Income tax provision	20.1		118.0
Adjusted EBITDA	$	160.5	$	390.6