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16. Statutory Financial Information and Regulatory Matters (Tables)
12 Months Ended
Dec. 31, 2012
Notes to Financial Statements  
Statutory Financial Data
Statutory Financial Data:   As of or For the Years Ended December 31,  
($ in millions)   2012     2011     2010  
                   
Statutory capital and surplus   $ 313.5     $ 312.8     $ 275.7  
Asset valuation reserve     7.5       7.3       3.1  
Statutory capital, surplus and asset valuation reserve   $ 321.0     $ 320.1     $ 278.8  
Statutory gain (loss) from operations   $ 61.9     $ 56.4     $ 77.6  
Statutory net income (loss)   $ 49.7     $ 61.4     $ 47.0