Reserve for Losses and Loss Adjustment Expenses (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) loan	Mar. 31, 2015 USD ($) loan
Reconciliation of the beginning and ending reserve balances for losses and loss adjustment expenses (LAE)
Reserve for losses and LAE at beginning of period	$ 17,760	$ 8,427
Net reserve for losses and LAE at beginning of period	17,760	8,427
Add provision for losses and LAE, net of reinsurance, occurring in:
Current period	5,080	2,705
Prior years	(1,349)	(706)
Net incurred losses during the current period	3,731	1,999
Deduct payments for losses and LAE, net of reinsurance, occurring in:
Current period	1	0
Prior years	1,020	361
Net loss and LAE payments during the current period	1,021	361
Net reserve for losses and LAE at end of period	20,470	10,065
Reserve for losses and LAE at end of period	$ 20,470	$ 10,065
Loans in default at end of period | loan	1,060	505
Reserve for losses and LAE, for prior years	$ 15,400	$ 7,400