Nature of Operations and Basis of Presentation - Deferred acquisition costs (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Deferred Acquisition Costs
Deferred Policy Acquisition Cost, Beginning Balance	$ 43,433	$ 24,530
Additions	19,356	23,857
Amortization	(3,938)	(3,905)
Interest	(841)	(883)
Impact of unrealized investment losses	(406)	(166)
Deferred Policy Acquisition Cost, Ending Balance	$ 57,604	$ 43,433