Reinsurance Liability For Catastrophe Claims Disclosure (Details) (Catastrophe [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended							3 Months Ended				6 Months Ended
	Jun. 30, 2014 catastrophic_event	Jun. 30, 2013 catastrophic_event		Jun. 30, 2014 catastrophic_event	Jun. 30, 2013 catastrophic_event		Jun. 30, 2014 Catastrophe Loss Size, Range 1 [Member] catastrophic_event		Jun. 30, 2013 Catastrophe Loss Size, Range 1 [Member] catastrophic_event		Jun. 30, 2014 Catastrophe Loss Size, Range 2 [Member] catastrophic_event		Jun. 30, 2013 Catastrophe Loss Size, Range 2 [Member] catastrophic_event		Jun. 30, 2014 Catastrophe Loss Size, Range 2 [Member] catastrophic_event		Jun. 30, 2013 Catastrophe Loss Size, Range 2 [Member] catastrophic_event		Jun. 30, 2014 Minimum [Member] Catastrophe Loss Size, Range 1 [Member]	Mar. 31, 2013 Minimum [Member] Catastrophe Loss Size, Range 1 [Member]	Jun. 30, 2014 Maximum [Member] Catastrophe Loss Size, Range 1 [Member]	Mar. 31, 2013 Maximum [Member] Catastrophe Loss Size, Range 1 [Member]	Jun. 30, 2014 Maximum [Member] Catastrophe Loss Size, Range 2 [Member]	Mar. 31, 2013 Maximum [Member] Catastrophe Loss Size, Range 2 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses																			$ 1,000	$ 1,000	$ 5,000	$ 5,000	$ 1,000	$ 1,000
Number of Catastrophic Events	1	3		1	3		0	[1]	1	[1]	1	[2]	3	[2]	1	[3]	2	[3]
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	$ 260	$ 1,777	[4]	$ 260	$ 3,595	[4]	$ 0	[1]	$ 1,900	[1],[4]	$ 260	[2]	$ 1,777	[2],[4]	$ 260	[3]	$ 1,695	[3],[4]
Catastrophic Events, Impact on Combined Ratio	0.40%	3.90%		0.20%	4.10%		0.00%	[1]	2.20%	[1]	0.40%	[2]	3.90%	[2]	0.20%	[3]	1.90%	[3]

[1] Reflects losses from Winterstorm Nemo.

[2] Reflects losses from the Richland hailstorm in June 2014.

[3] Reflects losses from Winterstorm Nemo, the Orlando weather event in March 2013 and Tropical Storm Andrea in June 2013.

[4] Incurred loss and Loss Adjustment Expenses (LAE) is equal to losses and LAE paid plus the change in case and incurred but not reported reserves.