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Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment, Net [Abstract]  
Property, Plant and Equipment
Property, plant and equipment, net includes the following:
 
December 31
 
2012
 
2011
Coal lands and real estate:
 
 
 
NACoal
$
67.6

 
$
36.7

HBB
0.2

 
0.2

 
67.8

 
36.9

Plant and equipment:
 
 
 
NACoal
149.9

 
99.7

HBB
42.9

 
41.0

KC
29.5

 
29.1

NACCO and Other
4.3

 
6.5

 
226.6

 
176.3

Property, plant and equipment, at cost
294.4

 
213.2

Less allowances for depreciation, depletion and amortization
111.4

 
106.0

 
$
183.0

 
$
107.2