Deferred Policy Acquisition Costs - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred Policy Acquisition Cost [Line Items]
Amortization of deferred policy acquisition costs	$ 86,214	$ 100,669	$ 86,963
Policy acquisition costs deferred	$ 83,602	88,496
United Insurance Holdings Corporation [Member]
Deferred Policy Acquisition Cost [Line Items]
Policy acquisition costs deferred			$ 34,491
Derecognition of Direct cost		$ 1,349