Inventories

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are summarized as follows:

	JUNE 30 2017		DECEMBER 31 2016		JUNE 30 2016
Coal - NACoal	$	12,653	$	13,137	$	18,533
Mining supplies - NACoal	15,709		15,790		19,868
Total inventories at weighted average cost	28,362		28,927		38,401
Sourced inventories - HBB	104,342		95,008		96,401
Retail inventories - KC	31,055		33,407		32,787
Total inventories	$	163,759	$	157,342	$	167,589