Reinsurance Liability For Catastrophe Claims Disclosure (Details) (Catastrophe [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 catastrophic_event		Mar. 31, 2013 catastrophic_event
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events	0		2
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	$ 0	[1]	$ 1,818	[1]
Catastrophic Events, Impact on Combined Ratio	0.00%		4.30%
Catastrophe Loss Size, Range 1 [Member]
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events	0		1	[2]
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	0	[1]	1,442	[1],[2]
Catastrophic Events, Impact on Combined Ratio	0.00%		3.40%
Catastrophe Loss Size, Range 2 [Member]
Liability for Catastrophe Claims [Line Items]
Number of Catastrophic Events	0	[3]	1
Catastrophic Event, Incurred Losses and Loss Adjustment Expense	0	[1],[3]	376	[1]
Catastrophic Events, Impact on Combined Ratio	0.00%	[3]	0.90%
Minimum [Member] | Catastrophe Loss Size, Range 1 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses	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
Maximum [Member] | Catastrophe Loss Size, Range 2 [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophic Events, Size of Losses	$ 1,000		$ 1,000

[1] Incurred loss and Loss Adjusting 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 in 2013.

[3] Reflects losses from Winterstorm Nemo, the Orlando weather event in March 2013.