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Capital Contributions and Dividends (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Lion
Mar. 31, 2013
Lion
May 02, 2014
Subsequent Event
Dividends Payable [Line Items]          
Capital contribution from parent $ 0 $ 0      
Capital contributions to parent     0 0  
Dividends payable         $ 281.0