Reinsurance Liability For Catastrophe Claims Disclosure (Details) (Catastrophe [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014 catastrophic_event		Sep. 30, 2013 catastrophic_event		Sep. 30, 2014 catastrophic_event		Sep. 30, 2013 catastrophic_event
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events	3		3		3		3
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	$ 714	[1]	$ 127	[1]	$ 974	[1]	$ 3,722	[1]
Catastrophic Events, Impact on Combined Ratio	1.10%		0.30%		0.50%		2.70%
Catastrophe Loss Size, Range 1 [Member]
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events					0	[2]	1	[2]
Catastrophic Event, Incurred Losses and Loss Adjustment Expense					0	[1],[2]	1,904	[1],[2]
Catastrophic Events, Impact on Combined Ratio					0.00%	[2]	1.40%	[2]
Catastrophe Loss Size, Range 2 [Member]
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events	3	[3]	3	[3]	3	[4]	2	[4]
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	714	[1],[3]	127	[1],[3]	974	[1],[4]	1,818	[1],[4]
Catastrophic Events, Impact on Combined Ratio	1.10%	[3]	0.30%	[3]	0.50%	[4]	1.30%	[4]
Minimum [Member] | Catastrophe Loss Size, Range 1 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses	1,000		1,000		1,000		1,000
Maximum [Member] | Catastrophe Loss Size, Range 1 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses	5,000		5,000		5,000		5,000
Maximum [Member] | Catastrophe Loss Size, Range 2 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses	$ 1,000		$ 1,000		$ 1,000		$ 1,000

[1] 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.

[2] Reflects losses from Winterstorm Nemo.

[3] Reflects losses from the Richland hailstorm, Hurricane Arthur and the Revere Tornado in 2014 and Winterstorm Nemo, the Orlando weather event in March and Tropical Storm Andrea in June 2013.

[4] Reflects losses from the Richland hailstorm, Hurricane Arthur and the Revere Tornado in 2014, and the Orlando weather event and Tropical Storm Andrea in 2013.