Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue Recognition

Schedule of effects of revenue recognition

							Corporate,
					Other		Other and
	PRB		MET		Thermal		Eliminations		Consolidated
	(in thousands)
Three Months Ended June 30, 2020
North America revenues	$	133,096	$	40,137	$	31,149	$	6,177	$	210,559
Seaborne revenues		—		98,814		10,148		—		108,962
Total revenues	$	133,096	$	138,951	$	41,297	$	6,177	$	319,521
Three Months Ended June 30, 2019
North America revenues	$	210,149	$	54,896	$	47,885	$	623	$	313,553
Seaborne revenues		—		206,349		50,320		—		256,669
Total revenues	$	210,149	$	261,245	$	98,205	$	623	$	570,222
Six Months Ended June 30, 2020
North America revenues	$	311,375	$	69,860	$	59,733	$	18,559	$	459,527
Seaborne revenues		181		251,745		13,300		—		265,226
Total revenues	$	311,556	$	321,605	$	73,033	$	18,559	$	724,753
Six Months Ended June 30, 2019
North America revenues	$	422,878	$	99,562	$	94,414	$	3,837	$	620,691
Seaborne revenues		—		414,945		89,769		—		504,714
Total revenues	$	422,878	$	514,507	$	184,183	$	3,837	$	1,125,405