Deferred Policy Acquisition Costs (Tables)

12 Months Ended

Dec. 31, 2017

Deferred Policy Acquisition Costs Disclosures [Abstract]

Summary of Deferred Policy Acquisition Costs

The activity in deferred policy acquisition costs, net of reinsurance transactions, is as follows (dollars in thousands):

	December 31,
	2017			2016			2015
Balance at beginning of period	$	13,290		$	12,102		$	5,679
Deferred policy acquisition costs	25,736			26,468			22,606
Amortization of policy acquisition costs	(26,245		)	(25,280		)	(16,183		)
Net change	(509		)	1,188			6,423
Balance at end of period	$	12,781		$	13,290		$	12,102