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Investments (Components Of Net Realized Gains, Excluding OTTI Charges) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items]        
HTM fixed income securities Gains $ 3,000 $ 3,000 $ 3,000 $ 3,000
HTM fixed income securities Losses (3,000) (12,000) (14,000) (49,000)
Other investments Gains 0 0 0 0
Other Investments Losses 0 0 0 (860,000)
Total other net realized investment gains 4,958,000 5,709,000 13,139,000 11,013,000
Total OTTI charges recognized in earnings (419,000) (555,000) (1,382,000) (2,504,000)
Total net realized gains 4,539,000 5,154,000 11,757,000 8,509,000
Proceeds From Sale Of Available For Sale Securities 68,700,000 42,200,000 131,600,000 49,100,000
Realized Gain On The Sale Of Private Equity [Member]
        
Schedule of Available-for-sale Securities [Line Items]        
Total net realized gains   4,700,000   4,700,000
Fixed Income Securities [Member]
        
Schedule of Available-for-sale Securities [Line Items]        
AFS securities Gains 780,000 967,000 938,000 1,918,000
AFS securities Losses (31,000) (46,000) (143,000) (299,000)
Equity Securities [Member]
        
Schedule of Available-for-sale Securities [Line Items]        
AFS securities Gains 4,362,000 4,800,000 12,679,000 10,471,000
AFS securities Losses (153,000) (3,000) (324,000) (171,000)
Proceeds Due To Rebalancing Of Equity Securities Portfolio [Member]
        
Schedule of Available-for-sale Securities [Line Items]        
Total net realized gains       $ 5,600,000