Reinsurance - Net Premiums Written and Earned, Insurance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Ceded Credit Risk [Line Items]
Direct premiums written	$ 248,309	$ 253,239	$ 749,614	$ 762,707
Ceded premiums written	(9,418)	(14,555)	(590)	(35,157)
Premiums written, net	240,102	240,367	753,105	733,146
Direct premiums earned	262,010	277,948	793,415	863,176
Ceded premiums earned	(22,999)	(30,513)	(49,192)	(93,026)
Premiums earned, net	240,222	249,118	748,304	775,746
Ceding commissions earned	4,772	7,120	13,330	25,446
Ceded losses	(9,278)	795	(37,138)	3,463
Deferred ceding commissions	30,200		30,200		$ 38,600
Mortgage
Ceded Credit Risk [Line Items]
Direct premiums written	243,145	240,669	728,171	734,993
Assumed premiums written	1,211	1,683	4,081	5,596
Ceded premiums written	(9,278)	(14,236)	(170)	(34,572)
Direct premiums earned	256,845	265,378	771,971	835,462
Assumed premiums earned	1,211	1,683	4,081	5,596
Ceded premiums earned	(22,859)	(30,194)	(48,772)	(92,441)
homegenius
Ceded Credit Risk [Line Items]
Direct premiums written	5,164	12,570	21,443	27,714
Ceded premiums written	(140)	(319)	(420)	(585)
Direct premiums earned	5,165	12,570	21,444	27,714
Ceded premiums earned	$ (140)	$ (319)	$ (420)	$ (585)