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Equity - Narrative (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 1 Months Ended
Oct. 31, 2013
Sep. 23, 2013
Mar. 31, 2012
Nov. 30, 2011
Nov. 09, 2011
Equity [Abstract]          
Stock Issued During Period, Shares, New Issues       28,750,000  
Sale of Stock, Price Per Share (in Dollars per share)         $ 13.00
Stock Issued During Period, Shares, Other       3,750,000  
Stock Issued During Period, Value, Issued for Cash (in Dollars)       $ 354.4  
Debt Conversion, Converted Instrument, Amount (in Dollars)     56.4    
Debt Conversion, Converted Instrument, Shares Issued     4,635,159    
Payments for Repurchase of Equity   157.9      
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)   3,145,640      
Number Of Preferred Shares To Be Converted   100,000      
Stock Repurchase Program, Authorized Amount $ 500.0