v3.2.0.727

Investments (Summary Of Gross Unrealized Investment Losses By Length Of Time That Securities Have Continuously Been In An Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	$ 1,724,505	$ 697,102
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(41,615)	(13,139)
Available-for-sale securities, estimated fair value, 12 months or longer	906,844	1,333,930
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(22,198)	(22,079)
Available-for-sale securities, estimated fair value	2,631,349	2,031,032
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(63,813)	(35,218)
U.S. Treasury Securities And Obligations Of U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	97,844	108,250
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(2,842)	(62)
Available-for-sale securities, estimated fair value, 12 months or longer	114,198	163,359
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(1,013)	(2,101)
Available-for-sale securities, estimated fair value	212,042	271,609
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(3,855)	(2,163)
Obligations Of States, Municipalities And Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	654,959	58,583
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(12,765)	(542)
Available-for-sale securities, estimated fair value, 12 months or longer	63,885	92,441
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(4,265)	(2,817)
Available-for-sale securities, estimated fair value	718,844	151,024
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(17,030)	(3,359)
Foreign Governments [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	31,312	18,856
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(542)	(386)
Available-for-sale securities, estimated fair value, 12 months or longer	44,756	56,217
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(514)	(655)
Available-for-sale securities, estimated fair value	76,068	75,073
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(1,056)	(1,041)
Commercial Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	124,536	45,931
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(703)	(210)
Available-for-sale securities, estimated fair value, 12 months or longer	97,983	147,558
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(1,162)	(2,392)
Available-for-sale securities, estimated fair value	222,519	193,489
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(1,865)	(2,602)
Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	112,947	9,613
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(2,832)	(2,285)
Available-for-sale securities, estimated fair value, 12 months or longer	156,760	207,374
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(3,699)	(3,455)
Available-for-sale securities, estimated fair value	269,707	216,987
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(6,531)	(5,740)
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	12,146	30,448
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(11)	(20)
Available-for-sale securities, estimated fair value, 12 months or longer	46,122	45,160
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(499)	(662)
Available-for-sale securities, estimated fair value	58,268	75,608
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(510)	(682)
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	433,329	141,176
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(9,696)	(2,263)
Available-for-sale securities, estimated fair value, 12 months or longer	356,992	621,821
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(8,486)	(9,997)
Available-for-sale securities, estimated fair value	790,321	762,997
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(18,182)	(12,260)
Total Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	1,467,073	412,857
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(29,391)	(5,768)
Available-for-sale securities, estimated fair value, 12 months or longer	880,696	1,333,930
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(19,638)	(22,079)
Available-for-sale securities, estimated fair value	2,347,769	1,746,787
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(49,029)	(27,847)
Insurance, Banks And Other Financial Institutions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	13,307	16,219
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(578)	(1,531)
Available-for-sale securities, estimated fair value, 12 months or longer	8,040	0
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(772)	0
Available-for-sale securities, estimated fair value	21,347	16,219
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(1,350)	(1,531)
Industrial, Consumer And All Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	84,162	86,062
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(11,641)	(5,834)
Available-for-sale securities, estimated fair value, 12 months or longer	18,108	0
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(1,788)	0
Available-for-sale securities, estimated fair value	102,270	86,062
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(13,429)	(5,834)
Total Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	97,469	102,281
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(12,219)	(7,365)
Available-for-sale securities, estimated fair value, 12 months or longer	26,148	0
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	(2,560)	0
Available-for-sale securities, estimated fair value	123,617	102,281
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	(14,779)	(7,365)
Short-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, estimated fair value, less than 12 months	159,963	181,964
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, less than 12 months	(5)	(6)
Available-for-sale securities, estimated fair value, 12 months or longer	0	0
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses, 12 months or longer	0	0
Available-for-sale securities, estimated fair value	159,963	181,964
Available-for-sale securities, gross unrealized holding and other-than-temporary impairment losses	$ (5)	$ (6)

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- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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