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Discontinued Operations (Tables)
3 Months Ended
Mar. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Dscontinued Operations, Income Statement, Balance Sheet and Additional Disclosures
 
For the three months ended March 31,
 
2013
 
2012
 
(in millions)
Revenues
$
0.2

 
$
8.5

Operating loss
$

 
$
(0.8
)
Income tax benefit

 
0.1

Loss from discontinued operations, net of income taxes
$

 
$
(0.7
)

Net assets for entities and operations included in discontinued operations are summarized as follows:
 
March 31,
2013
 
December 31,
2012
 
(in millions)
Assets:
 
 
 
Land
$
36.6

 
$
36.6

Other assets, net
2.0

 
2.0

Total assets
$
38.6

 
$
38.6

Liabilities:
 
 
 
Total liabilities
$

 
$

Net assets
$
38.6

 
$
38.6