Inventories

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are summarized as follows:

	MARCH 31 2017		DECEMBER 31 2016		MARCH 31 2016
Coal - NACoal	$	13,155	$	13,137	$	16,305
Mining supplies - NACoal	16,100		15,790		20,810
Total inventories at weighted average cost	29,255		28,927		37,115
Sourced inventories - HBB	98,688		95,008		94,482
Retail inventories - KC	31,039		33,407		32,737
Total inventories	$	158,982	$	157,342	$	164,334