Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Schedule of Operating Segment Results

	PRB		MET		Other Thermal		Corporate, Other and Eliminations			Consolidated
	(in thousands)
Three Months Ended September 30, 2019
Revenues	$	269,967	$	254,493	$	94,052	$	955		$	619,467
Adjusted EBITDA	50,153		70,814		16,659		(31,005		)	106,621
Depreciation, depletion and amortization	5,956		19,962		3,852		632			30,402
Accretion on asset retirement obligation	3,135		531		603		868			5,137
Total assets	236,656		609,378		148,994		939,572			1,934,600
Capital expenditures	5,402		36,475		6,837		738			49,452
Three Months Ended September 30, 2018
Revenues	$	261,927	$	236,328	$	130,663	$	4,262		$	633,180
Adjusted EBITDA	48,646		81,250		25,200		(30,202		)	124,894
Depreciation, depletion and amortization	9,114		18,106		3,924		631			31,775
Accretion on asset retirement obligation	4,885		469		565		1,073			6,992
Total assets	374,092		561,989		127,904		933,637			1,997,622
Capital expenditures	3,458		17,827		3,332		1,076			25,693
Nine Months Ended September 30, 2019
Revenues	$	692,845	$	769,000	$	278,235	$	4,792		$	1,744,872
Adjusted EBITDA	85,433		264,284		33,699		(63,977		)	319,439
Depreciation, depletion and amortization	15,702		53,687		10,976		1,834			82,199
Accretion on asset retirement obligation	9,406		1,592		1,810		2,603			15,411
Total assets	236,656		609,378		148,994		939,572			1,934,600
Capital expenditures	19,026		98,849		16,299		3,222			137,396
Nine Months Ended September 30, 2018
Revenues	$	737,233	$	733,707	$	321,997	$	7,887		$	1,800,824
Adjusted EBITDA	102,639		251,649		52,710		(91,806		)	315,192
Depreciation, depletion and amortization	25,841		53,109		11,459		1,618			92,027
Accretion on asset retirement obligation	14,656		1,406		1,696		3,219			20,977
Total assets	374,092		561,989		127,904		933,637			1,997,622
Capital expenditures	7,221		35,555		7,097		5,869			55,742

Reconciliation Statement of Segment Income from Operations to Consolidated Income Before Income Taxes

A reconciliation of net income to adjusted EBITDA follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
	(In thousands)
Net income	$	106,769		$	123,192		$	242,350		$	226,483
Provision for (benefit from) income taxes	347			(45,215		)	508			(49,125		)
Interest expense, net	340			3,378			4,916			10,998
Depreciation, depletion and amortization	30,402			31,775			82,199			92,027
Accretion on asset retirement obligations	5,137			6,992			15,411			20,977
Amortization of sales contracts, net	(153		)	3,241			(77		)	9,540
Loss on sale of Lone Mountain Processing, LLC	—			—			4,304			—
Preference Rights Lease Application (PRLA) settlement income	(39,000		)	—			(39,000		)	—
Net loss resulting from early retirement of debt and debt restructuring	—			—			—			485
Non-service related pension and postretirement benefit costs	(975		)	971			2,127			2,206
Reorganization items, net	—			560			(71		)	1,601
Costs associated with proposed joint venture with Peabody Energy	3,754			—			6,772			—
Adjusted EBITDA	$	106,621		$	124,894		$	319,439		$	315,192