Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Narrative) (Details)

v2.4.0.6
Long-Term Debt (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 3 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2012
8.5% Senior Notes [Member]
Dec. 31, 2011
8.5% Senior Notes [Member]
Mar. 31, 2012
Revolving Credit Facility [Member]
May 07, 2012
Revolving Credit Facility [Member]
Debt Instrument [Line Items]            
Senior notes interest rate     8.50%      
Senior Note maturity date     Jun. 15, 2019   May 05, 2015  
Letters of credit outstanding $ 0.7 $ 0.4        
Revolving bank credit facility borrowing base 575.0       575.0 650.0
Annual effective interest rate     8.60%   4.00%  
Line of credit, borrowing capacity availability 490.3          
Revolving bank credit facility borrowings outstanding 84.0 117.0        
Senior Notes oustanding     $ 600.0 $ 600.0