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Investments (Components Of Net Realized Gains, Excluding OTTI Charges) (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]                      
HTM fixed maturity securities gains                 $ 195,000 $ 194,000 $ 4,000
HTM fixed maturity securities losses                 (95,000) (217,000) (564,000)
Short term investments realized losses                 0 (2,000) 0
Other investment securities gains                 0 1,000 0
Other investment securities losses                 (1,060,000) (400,000) 0
Net realized investment gains (1,208,000) 13,431,000 5,154,000 3,355,000 5,540,000 (1,088,000) 178,000 4,358,000 26,375,000 13,252,000 15,426,000
Total OTTI charges recognized in earnings                 (5,643,000) (4,264,000) (13,186,000)
Total net realized gains                 20,732,000 8,988,000 2,240,000
Proceeds from sale of available-for-sale securities                 135,900,000 205,300,000 206,500,000
Fixed Maturity Securities [Member]
                      
Schedule of Available-for-sale Securities [Line Items]                      
AFS securities gains                 3,340,000 4,452,000 9,385,000
AFS securities losses                 (373,000) (472,000) (70,000)
Equity Securities [Member]
                      
Schedule of Available-for-sale Securities [Line Items]                      
AFS securities gains                 24,776,000 10,901,000 6,671,000
AFS securities losses                 $ (408,000) $ (1,205,000) $ 0