Investments Aging of Unrealized Losses by Class (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended		6 Months Ended		12 Months Ended		6 Months Ended		12 Months Ended	6 Months Ended		12 Months Ended		6 Months Ended		12 Months Ended	6 Months Ended				12 Months Ended		6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2014 security		Dec. 31, 2013 security		Jun. 30, 2014 U.S. government and agency securities [Member] security		Dec. 31, 2013 U.S. government and agency securities [Member] security	Dec. 31, 2013 Foreign Government Debt Securities [Member] security	Jun. 30, 2014 States, municipalities and political subdivisions [Member] security		Dec. 31, 2013 States, municipalities and political subdivisions [Member] security	Jun. 30, 2014 Public Utility, Bonds [Member] security		Dec. 31, 2013 Public Utility, Bonds [Member] security		Jun. 30, 2014 Corporate Debt Securities [Member] security		Dec. 31, 2013 Corporate Debt Securities [Member] security	Jun. 30, 2014 Redeemable Preferred Stock [Member] security		Jun. 30, 2014 Fixed Maturities [Member] security		Dec. 31, 2013 Fixed Maturities [Member] security		Jun. 30, 2014 Public Utility, Equities [Member] security	Dec. 31, 2012 Public Utility, Equities [Member] security	Jun. 30, 2014 Common Stock [Member] security	Dec. 31, 2013 Common Stock [Member] security	Jun. 30, 2014 Nonredeemable Preferred Stock [Member] security	Dec. 31, 2013 Nonredeemable Preferred Stock [Member] security	Jun. 30, 2014 Equity Securities [Member] security		Dec. 31, 2013 Equity Securities [Member] security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Less Than Twelve Months, Qualitative Disclosure, Number of Positions	82	[1]	148	[1]	18		47	4	16		23	0		4		7		49	2		43	[1]	127	[1]	5	5	31	15	3	1	39	[1]	21	[1]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	$ 228		$ 3,027		$ 69		$ 850	$ 60	$ 99		$ 433	$ 0		$ 92		$ 19		$ 1,469	$ 4		$ 191		$ 2,904		$ 1	$ 20	$ 33	$ 97	$ 3	$ 6	$ 37		$ 123
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	49,816		160,988		24,151		64,369	3,227	16,552		27,106	0		3,830		7,185		60,348	204		48,092		158,880		196	357	1,233	1,626	295	125	1,724		2,108
Available-for-sale, Securities in Unrealized Loss Positions, Twelve Months or More, Qualitative Disclosure, Number of Positions	51	[1]	8	[1]	18	[1]	7	0	12	[1]	0	2	[1]	0	[1]	17	[1]	0	0	[1]	49	[1]	7	[1]	0	0	1	0	1	1	2	[1]	1	[1]
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	875		336		411		319	0	97		0	37		0		295		0	0		840		319		0	0	33	0	2	17	35		17
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 54,118		$ 6,038		$ 15,896		$ 5,913	$ 0	$ 14,231		$ 0	$ 2,294		$ 0		$ 21,297		$ 0	$ 0		$ 53,718		$ 5,913		$ 0	$ 0	$ 272	$ 0	$ 128	$ 125	$ 400		$ 125

[1] This amount represents the actual number of discrete securities, not the number of shares of those securities. The numbers are not presented in thousands.