Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Premiums Written, Net [Abstract]
Premiums written - direct	$ 245,513	$ 168,876
Premiums written - ceded	(29,015)	(24,578)
Net written premiums	216,498	144,298
Premiums Earned, Net [Abstract]
Premiums earned - direct	205,628	145,031
Premiums earned - ceded	(27,066)	(21,990)
Net earned premiums	178,562	123,041
Ceded incurred losses and loss adjustment expenses	9,636	12,501
Reinsurance recoverables on paid losses	7,920		$ 5,409
Reinsurance recoverable on unpaid losses	121,367	$ 94,819	117,561	$ 83,730
Reinsurance recoverables, net	$ 129,287		$ 122,970