Deferred Policy Acquisition Costs - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Policy Acquisition Cost [Line Items]
Amortization of deferred policy acquisition costs	$ 100,669	$ 86,963	$ 49,125
Policy acquisition costs deferred	88,496	100,800
United Insurance Holdings Corporation [Member]
Deferred Policy Acquisition Cost [Line Items]
Policy acquisition costs deferred	$ 1,349	$ 34,491	$ 15,557