Segment Information (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

The following tables include reconciliations of segment information to consolidated amounts (in thousands): 

	For the years ended December 31,
	2020		2019		2018
Revenues
Mining	$	761,871	$	1,235,998	$	1,342,683
All other	20,867		32,311		35,324
Total revenues	$	782,738	$	1,268,309	$	1,378,007

Reconciliation of Capital Expenditures from Segments to Consolidated

	For the years ended December 31,
	2020		2019		2018
Capital Expenditures
Mining	$	78,015	$	100,768	$	97,607
All other	9,473		6,510		4,013
Total capital expenditures	$	87,488	$	107,278	$	101,620

Reconciliation of Net Income (Loss) from Segments to Consolidated

Below is a reconciliation of Segment Adjusted EBITDA to net (loss) income, which is its most directly comparable financial measure calculated and presented in accordance with GAAP (in thousands): 

	For the years ended December 31,
	2020		2019		2018
Segment Adjusted EBITDA	$	136,701	$	515,253	$	626,038
Other revenues	20,867		32,311		35,324
Cost of other revenues	(33,736)		(29,828)		(10,172)
Depreciation and depletion	(118,092)		(97,330)		(97,209)
Selling, general and administrative	(32,879)		(37,014)		(36,626)
Transaction and other costs	—		—		(9,068)
Loss on early extinguishment of debt	—		(9,756)		—
Other income	3,544		22,815		—
Interest expense, net	(32,310)		(29,335)		(37,314)
Income tax (expense) benefit	20,144		(65,417)		225,814
Net (loss) income	$	(35,761)	$	301,699	$	696,787