Reinsurance (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Excess of Loss Product Line [Member]	Sep. 30, 2012 Excess of Loss Product Line [Member]	Sep. 30, 2013 Excess of Loss Product Line [Member]	Sep. 30, 2012 Excess of Loss Product Line [Member]	Sep. 30, 2013 Equipment and Identity Theft Product Line [Member]	Sep. 30, 2012 Equipment and Identity Theft Product Line [Member]	Sep. 30, 2013 Equipment and Identity Theft Product Line [Member]	Sep. 30, 2012 Equipment and Identity Theft Product Line [Member]	Sep. 30, 2013 Flood Product Line [Member]	Sep. 30, 2012 Flood Product Line [Member]	Sep. 30, 2013 Flood Product Line [Member]	Sep. 30, 2012 Flood Product Line [Member]	Jun. 01, 2013 Unaffiliated Private Reinsurers [Member] Maximum [Member]	Jun. 01, 2013 Florida Hurricane Catastrophe Fund [Member] Mandatory Layer [Member] Maximum [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Ceded Premiums Written	$ (3,468,000)	$ (2,275,000)	$ (122,357,000)	$ (112,755,000)	$ 1,190,000	$ 1,351,000	$ (109,893,000)	$ (102,909,000)	$ (707,000)	$ (395,000)	$ (1,862,000)	$ (1,117,000)	$ (3,951,000)	$ (3,231,000)	$ (10,602,000)	$ (8,729,000)
Increase (Decrease) in Ceded Unearned Premiums	(27,849,000)	(26,060,000)	34,532,000	36,807,000
Aggregate Coverage for Covered Losses Under Reinsurance Contract																	360,060,000	441,540,000
Ceded Premiums Earned	(31,317,000)	(28,335,000)	(87,825,000)	(75,948,000)
Percentage of Flood Premiums Ceded	100.00%
Insurance Commissions and Fees, Flood Program	184,000	151,000	452,000	392,000
Reinsurance Costs and Recoveries, Net	$ 4,557,000	$ 61,000	$ 7,783,000	$ 1,623,000