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Investments (Components Of Net Realized Gains, Excluding OTTI Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Schedule of Available-for-sale and held-to-maturity Securities [Line Items]
HTM securities realized gain	$ 0	$ 3	$ 3	$ 5
HTM fixed income securities losses	0	0	(1)	(1)
Other investments gains	3	0	3	0
Other investments losses	0	0	(4)	(654)
Total net realized gains (excluding OTTI charges)	4,030	1,590	7,233	23,598
Proceeds from sale of available for sale securities	27,000	12,700	132,900	170,600
Fixed Income Securities [Member]
Schedule of Available-for-sale and held-to-maturity Securities [Line Items]
AFS securities gains	2,204	169	3,189	2,158
AFS securities losses	(40)	0	(81)	(130)
Equity Securities [Member]
Schedule of Available-for-sale and held-to-maturity Securities [Line Items]
AFS securities gains	1,863	1,419	4,364	23,567
AFS securities losses	$ 0	$ (1)	$ (240)	$ (1,347)

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 942
-SubTopic 225
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