Reinsurance - Summary of Quota Reinsurance Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Effects of Reinsurance [Line Items]
Ceded losses incurred	$ (1,985)	$ 8,410
Quota Share Reinsurance Agreements
Effects of Reinsurance [Line Items]
Ceded premiums written and earned, net of profit commission	22,378	33,390
Ceded losses incurred	(1,985)	8,405
Ceding commissions (1)	12,272	13,067
Profit commission	$ 38,980	$ 31,944