Unpaid losses and LAE (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Unpaid losses and LAE [Abstract]
Balance, beginning of period	$ 78,330	$ 61,016
Less reinsurance recoverables	(12,534)	(2,742)
Net balance, beginning of period	65,796	58,274
Incurred related to [Abstract]
Current year	73,895	79,932
Prior years	1,615	1,104
Total incurred	75,510	81,036
Paid related to [Abstract]
Current year	30,739	42,391
Prior years	27,243	31,123
Total paid	57,982	73,514
Net balance, end of period	83,324	65,796
Plus reinsurance recoverables	8,349	12,534
Balance, end of period	$ 91,673	$ 78,330