Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Deferred Policy Acquisition Costs Disclosures [Abstract]
Balance, beginning of period, net	$ 4,426	$ 3,677	$ 4,389	$ 4,030
Additions	3,709	2,525	6,268	4,162
Amortization	(2,590)	(2,063)	(5,112)	(4,053)
Balance, end of period, net	$ 5,545	$ 4,139	$ 5,545	$ 4,139