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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2013
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term debt was as follows:

 
September 30, 2013
 
December 31, 2012
 
(in millions)
10.875% Senior Secured Notes, due 2017, net of unamortized discount of $1.8 million as of December 31, 2012
$

 
$
220.9

6.5% Senior Notes, due 2022
500.0

 
500.0

CRNF credit facility
125.0

 
125.0

Capital lease obligations
50.2

 
51.2

Long-term debt
$
675.2

 
$
897.1