Reinsurance Ceded Premiums Earned by type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Ceded Premiums Earned by type [Line Items]
Document Period End Date	Mar. 31, 2015
Ceded Premiums Written	$ (6,167)	$ (3,851)
Increase (Decrease) in Ceded Unearned Premiums	(30,967)	(27,126)
Ceded Premiums Earned	(37,134)	(30,977)
Excess of Loss Product Line [Member]
Ceded Premiums Earned by type [Line Items]
Ceded Premiums Written	(2,126)	(61)
Equipment and Identity Theft Product Line [Member]
Ceded Premiums Earned by type [Line Items]
Ceded Premiums Written	(1,194)	(761)
Flood Product Line [Member]
Ceded Premiums Earned by type [Line Items]
Ceded Premiums Written	$ (2,847)	$ (3,029)