Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment results for the Successor period April 2 through December 31, 2017 were as follows:



	Successor
	Powder River Basin Mining		Midwestern U.S. Mining		Western U.S. Mining		Australian Metallurgical Mining		Australian Thermal Mining		Trading and Brokerage			Corporate and Other			Consolidated
	(Dollars in millions)
Revenues	$	1,178.7	$	592.3	$	440.7	$	1,221.0	$	772.5	$	33.6		$	13.8		$	4,252.6
Adjusted EBITDA	278.8		124.4		131.8		414.9		306.6		(6.9		)	(104.3		)	1,145.3
Additions to property, plant, equipment and mine development	32.6		21.7		13.8		56.0		39.2		—			3.3			166.6
Income from equity affiliates	—		—		—		—		—		—			(49.0		)	(49.0		)

Segment results for the Predecessor period January 1 through April 1, 2017 were as follows:



	Predecessor
	Powder River Basin Mining		Midwestern U.S. Mining		Western U.S. Mining		Australian Metallurgical Mining		Australian Thermal Mining		Trading and Brokerage		Corporate and Other			Consolidated
	(Dollars in millions)
Revenues	$	394.3	$	193.2	$	149.7	$	328.9	$	224.8	$	15.0	$	20.3		$	1,326.2
Adjusted EBITDA	91.7		50.0		50.0		109.6		75.6		8.8		(44.4		)	341.3
Additions to property, plant, equipment and mine development	19.3		2.8		3.1		5.2		2.3		—		0.1			32.8
Federal coal lease expenditures	—		—		0.5		—		—		—		—			0.5
Income from equity affiliates	—		—		—		—		—		—		(15.0		)	(15.0		)

Segment results for the year ended December 31, 2016 were as follows:



	Predecessor
	Powder River Basin Mining		Midwestern U.S. Mining		Western U.S. Mining		Australian Metallurgical Mining			Australian Thermal Mining		Trading and Brokerage			Corporate and Other			Consolidated
	(Dollars in millions)
Revenues	$	1,473.3	$	792.5	$	526.0	$	1,090.4		$	824.9	$	28.9		$	(20.7	)	$	4,715.3
Adjusted EBITDA	379.9		217.3		101.6		(16.3		)	217.6		(32.4		)	(335.7		)	532.0
Additions to property, plant, equipment and mine development	33.0		18.7		20.8		29.9			22.1		—			2.1			126.6
Federal coal lease expenditures	248.4		—		0.6		—			—		—			—			249.0
Income from equity affiliates	—		—		—		—			—		—			(16.2		)	(16.2		)

Segment results for the year ended December 31, 2015 were as follows:



	Predecessor
	Powder River Basin Mining		Midwestern U.S. Mining		Western U.S. Mining		Australian Metallurgical Mining			Australian Thermal Mining		Trading and Brokerage		Corporate and Other			Consolidated
	(Dollars in millions)
Revenues	$	1,865.9	$	981.2	$	682.3	$	1,181.9		$	823.5	$	40.6	$	33.8		$	5,609.2
Adjusted EBITDA	482.9		269.7		184.6		(18.2		)	193.6		24.8		(705.0		)	432.4
Additions to property, plant, equipment and mine development	15.0		51.3		19.3		25.5			13.6		—		2.1			126.8
Federal coal lease expenditures	276.9		—		0.3		—			—		—		—			277.2
Loss from equity affiliates	—		—		—		—			—		—		15.9			15.9

Assets as of December 31, 2017 were as follows:



	Successor
	U.S. Mining		Australian Mining		Trading and Brokerage		Corporate and Other		Consolidated
	(Dollars in millions)
Total assets	$	3,848.6	$	2,656.3	$	99.1	$	1,577.2	$	8,181.2
Property, plant, equipment and mine development, net	3,361.0		1,501.7		0.5		248.7		5,111.9

Assets as of December 31, 2016 were as follows:



	Predecessor
	U.S. Mining		Australian Mining		Trading and Brokerage		Corporate and Other		Consolidated
	(Dollars in millions)
Total assets	$	4,255.9	$	5,402.2	$	128.7	$	1,990.9	$	11,777.7
Property, plant, equipment and mine development, net	3,970.6		3,905.8		0.2		900.1		8,776.7

Assets as of December 31, 2015 were as follows:



	Predecessor
	U.S. Mining		Australian Mining		Trading and Brokerage		Corporate and Other		Consolidated
	(Dollars in millions)
Total assets	$	4,105.8	$	5,319.9	$	217.2	$	1,304.0	$	10,946.9
Property, plant, equipment and mine development, net	3,854.5		4,469.6		0.5		933.9		9,258.5

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



	Successor			Predecessor
	April 2 through December 31, 2017			January 1 through April 1, 2017			Year Ended December 31, 2016			Year Ended December 31, 2015
	(Dollars in millions)
Income (loss) from continuing operations, net of income taxes	$	713.1		$	(195.5	)	$	(663.8	)	$	(1,783.2	)
Depreciation, depletion and amortization	521.6			119.9			465.4			572.2
Asset retirement obligation expenses	41.2			14.6			41.8			45.5
Selling and administrative expenses related to debt restructuring	—			—			21.5			—
Net mark-to-market adjustment on actuarially determined liabilities	(45.2		)	—			—			—
Asset impairment	—			30.5			247.9			1,277.8
Changes in deferred tax asset valuation allowance and amortization of basis difference related to equity affiliates	(17.3		)	(5.2		)	(7.5		)	3.9
Interest expense	119.7			32.9			298.6			465.4
Loss on early debt extinguishment	20.9			—			29.5			67.8
Interest income	(5.6		)	(2.7		)	(5.7		)	(7.7		)
Break fees related to terminated asset sales	(28.0		)	—			—			—
Unrealized losses on non-coal trading derivative contracts	1.5			—			—			—
Unrealized losses (gains) on economic hedges	23.0			(16.6		)	39.8			(2.2		)
Coal inventory revaluation	67.3			—			—			—
Take-or-pay contract-based intangible recognition	(22.5		)	—			—			—
Reorganization items, net	—			627.2			159.0			—
Gain on disposal of reclamation liability	(31.2		)	—			—			—
Gain on disposal of Burton Mine	(52.2		)	—			—			—
Income tax benefit	(161.0		)	(263.8		)	(94.5		)	(207.1		)
Total Adjusted EBITDA	$	1,145.3		$	341.3		$	532.0		$	432.4

The following table presents revenues as a percent of total revenue from external customers by geographic region: