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Inventories
6 Months Ended
Jun. 30, 2014
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories are summarized as follows:

 
JUNE 30
2014
 
DECEMBER 31
2013
 
JUNE 30
2013
Coal - NACoal
$
24,377

 
$
24,710

 
$
22,154

Mining supplies - NACoal
19,659

 
17,406

 
15,994

Total inventories at weighted average cost
44,036

 
42,116

 
38,148

Sourced inventories - HBB
97,545

 
90,713

 
79,778

Retail inventories - KC
46,567

 
51,616

 
49,544

Total inventories at FIFO
144,112

 
142,329

 
129,322

 
$
188,148

 
$
184,445

 
$
167,470