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Inventories
12 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories are summarized as follows:
 
December 31
 
2014
 
2013
Coal - NACoal
$
29,576

 
$
24,710

Mining supplies - NACoal
19,774

 
17,406

Total inventories at weighted average cost
49,350

 
42,116

Sourced inventories - HBB
104,746

 
90,713

Retail inventories - KC
36,286

 
51,616

Total inventories at FIFO
141,032

 
142,329

 
$
190,382

 
$
184,445