Description of Business and Summary of Significant Accounting Policies - Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred policy acquisition costs		$ 33,014
Ceded deferred policy acquisition costs		(29,026)
Deferred policy acquisition costs		3,988
Capitalized costs	$ 16,753
Amortized costs	(13,001)
Deferred Policy Acquisition Cost, Net	$ 7,740	$ 4,000