Reinsurance - Summary of Quota Reinsurance Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Effects of Reinsurance [Line Items]
Ceded losses incurred	$ (10,430)	$ 8,898	$ (12,415)	$ 17,308
Quota Share Reinsurance Transactions
Effects of Reinsurance [Line Items]
Ceded premiums written and earned, net of profit commission	14,995	33,983	37,373	67,373
Ceded losses incurred	(10,430)	8,903	(12,415)	17,308
Ceding commissions	12,762	12,991	25,034	26,058
Profit commission	$ 48,814	$ 30,978	$ 87,794	$ 62,922