Investments, Investment Income By Category (Details) (USD $) In Thousands, unless otherwise specified	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 Investment Income, Reported Amounts, by Category [Line Items]
Investment income										$ 83,425	$ 124,201	$ 204,053
Investment expenses										(2,686)	(2,561)	(2,783)
Net investment income	21,278	20,250	20,883	18,328	21,660	[1]	30,394	32,178	37,408	80,739	121,640	201,270
Fixed Maturities [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income										82,168	122,886	202,301
Equity Securities [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income										229	200	330
Cash Equivalents [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income										353	333	496
Other [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment income										$ 675	$ 782	$ 926

[1] The results for the fourth quarter of 2012 include a loss of approximately $267 million related to our settlement with Freddie Mac and approximately $100 million related to our probable rescission settlement agreements. See Note 20 – “Litigation and Contingencies.”