Deferred Policy Acquisition Costs - Activity in Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance at beginning of period	$ 12,267	$ 12,243
Deferred policy acquisition costs	3,321	6,966
Amortization of policy acquisition costs	(5,464)	(6,750)
Net change	(2,143)	216
Balance at end of period	$ 10,124	$ 12,459