Description of Business and Summary of Significant Accounting Policies - Components of Other Insurance Liabilities, Current (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Description of Business and Summary of Significant Accounting Policies
Ceded reinsurance premiums payable	$ 29,204				$ 22,523
Commissions payable, reinsurers and agents	21,045				10,697
Advance premiums	8,668				4,277
Funds held under reinsurance treaty	1,851				2,206
General and accrued expenses payable	942				321
Other insurance liabilities, current	$ 61,710	$ 55,945	$ 61,516	$ 43,049	$ 40,024