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Investments (Credit Loss Component Of OTTI On Debt Securities Recognized In Earnings) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] |  |
Beginning Balance | $ 25,884 | $ 25,999
Additions: |  |
Initial credit impairment | 0 | 0
Additional credit impairment | 0 | 0
Deductions: |  |
Sold | (46) | (115)
Ending Balance | 25,838 | 25,884
Debt Securities [Member] |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] |  |
Beginning Balance | 21,186 | 21,186
Additions: |  |
Initial credit impairment | 0 | 0
Additional credit impairment | 0 | 0
Deductions: |  |
Sold | 0 | 0
Ending Balance | 21,186 | 21,186
Equity Securities [Member] |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] |  |
Beginning Balance | 4,698 | 4,813
Additions: |  |
Initial credit impairment | 0 | 0
Additional credit impairment | 0 | 0
Deductions: |  |
Sold | (46) | (115)
Ending Balance | $ 4,652 | $ 4,698

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