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Investments (Components Of Net Realized Gains, Excluding OTTI Charges) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]        
HTM fixed income securities Gains $ 2 $ 3 $ 2 $ 3
HTM fixed income securities Losses 0 (3) (1) (14)
Other investments Gains 0 0 0 0
Other Investments Losses 0 0 (654) 0
Total net realized gains (excluding OTTI charges) 1,031 4,958 22,008 13,139
Proceeds From Sale Of Available For Sale Securities 19,500   157,900  
Fixed Income Securities [Member]        
Schedule of Available-for-sale Securities [Line Items]        
AFS securities Gains 487 780 1,989 938
AFS securities Losses (18) (31) (130) (143)
Equity Securities [Member]        
Schedule of Available-for-sale Securities [Line Items]        
AFS securities Gains 830 4,362 22,148 12,679
AFS securities Losses $ (270) $ (153) $ (1,346) $ (324)