Deferred Policy Acquisition Costs - Activity in Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance at beginning of period	$ 12,221	$ 6,120	$ 12,102	$ 5,679
Deferred policy acquisition costs	6,975	4,178	13,097	7,214
Amortization of policy acquisition costs	(6,014)	(2,639)	(12,017)	(5,234)
Net change	961	1,539	1,080	1,980
Balance at end of period	$ 13,182	$ 7,659	$ 13,182	$ 7,659