Quarterly Financial Data (Unaudited) Restatement of Previously Issued Financial Statements - Unaudited Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 215,060	$ 260,198	$ 271,003	$ 292,373	$ 315,741
Accounts receivable, net	26,438	35,364	36,050	27,388	28,767
Short-term investments	36,523	7,212	8,165	8,462	9,251
Reinsurance Balance Due	299,060	299,596	269,251	236,336	228,416
Prepaid expenses and other current assets	20,009	20,158	21,953	20,753	14,338
Restricted cash	13,545	16,296	10,574	10,162	8,551
Total current assets	610,635	638,824	616,996	595,474	605,064
Property, equipment, and software, net	12,240	11,236	9,984	8,340	6,666
Goodwill	244,697	251,905	297,645	250,390	225,654	$ 28,289	$ 18,274
Long-term investments	55,118	55,357	56,228	56,865	58,324
Long-term insurance commissions receivable	12,265	11,930	10,461	9,061	7,521
Intangible assets, net	108,255	111,728	136,575	124,306	129,830
Restricted cash, non-current		500	500	500	500
Operating lease right-of-use assets	4,201	4,697	6,052	3,922	4,504
Other assets	1,646	3,057	1,519	5,373	684
Total assets	1,049,057	1,089,234	1,135,960	1,054,231	1,038,747
Current liabilities
Accounts payable	6,268	6,717	7,739	8,016	6,965
Accrued expenses and other current liabilities	39,742	36,847	46,614	34,140	37,675
Deferred revenue	270,690	277,616	243,982	199,140	201,085
Refundable customer deposits	20,142	22,585	21,618	18,716	15,274
Current debt	16,455	22,832	19,013	19,682	150
Losses and loss adjustment expense reserves	100,632	100,298	88,894	79,608	61,949
Other insurance liabilities, current	61,710	55,945	61,516	43,049	40,024
Total current liabilities	515,639	522,840	489,376	402,351	363,122
Long-term debt	425,310	425,012	416,568	415,002	414,585
Earnout liability, at fair value	44	57	100	2,687	13,866
Private warrant liability, at fair value	707	802	926	5,004	15,193
Lease liability - non-current	2,536	2,968	3,622	2,267	2,694
Other liabilities (includes $12,822, $29,858 and $23,228 at fair value, respectively)	25,468	24,952	30,825	15,528	12,242
Total liabilities	969,704	976,631	941,417	842,839	821,702
Stockholders' equity
Common stock, $0.0001 par value: Authorized shares - 400,000,000, 400,000,000 and 400,000,000, respectively Issued and outstanding shares - 98,297,186, 99,440,528 and 100,410,325, respectively	10	10	10	10	10
Additional paid-in capital	670,537	664,362	659,814	647,551	641,406
Accumulated other comprehensive income	(6,171)	(6,571)	(4,559)	(2,774)	(259)
Accumulated deficit	(585,023)	(545,198)	(460,722)	(433,395)	(424,112)
Total stockholders' equity	79,353	112,603	194,543	211,392	217,045	$ 107,325	$ (59,979)
Total liabilities and stockholders' equity	$ 1,049,057	1,089,234	1,135,960	1,054,231	$ 1,038,747
Previously reported
Current assets
Cash and cash equivalents		260,198	271,003	292,373
Accounts receivable, net		37,032	38,474	29,996
Short-term investments		7,212	8,165	8,462
Reinsurance Balance Due		303,987	273,971	239,739
Prepaid expenses and other current assets		21,160	22,621	21,087
Restricted cash		16,296	10,574	10,162
Total current assets		645,885	624,808	601,819
Property, equipment, and software, net		11,236	9,984	8,340
Goodwill		228,091	273,831	226,576
Long-term investments		55,357	56,228	56,865
Long-term insurance commissions receivable		11,930	10,461	9,061
Intangible assets, net		111,728	136,575	124,306
Restricted cash, non-current		500	500	500
Operating lease right-of-use assets		4,697	6,052	3,922
Other assets		3,057	1,519	5,373
Total assets		1,072,481	1,119,958	1,036,762
Current liabilities
Accounts payable		6,717	7,739	8,016
Accrued expenses and other current liabilities		36,847	47,967	35,029
Deferred revenue		277,616	243,425	198,857
Refundable customer deposits		19,867	19,246	16,686
Current debt		6,275	150	150
Losses and loss adjustment expense reserves		100,298	88,894	79,608
Other insurance liabilities, current		55,945	61,516	43,049
Total current liabilities		503,565	468,937	381,395
Long-term debt		425,012	416,568	415,002
Earnout liability, at fair value		57	100	2,687
Private warrant liability, at fair value		802	926	5,004
Lease liability - non-current		2,968	3,622	2,267
Other liabilities (includes $12,822, $29,858 and $23,228 at fair value, respectively)		24,952	30,825	15,528
Total liabilities		957,356	920,978	821,883
Stockholders' equity
Common stock, $0.0001 par value: Authorized shares - 400,000,000, 400,000,000 and 400,000,000, respectively Issued and outstanding shares - 98,297,186, 99,440,528 and 100,410,325, respectively		10	10	10
Additional paid-in capital		664,362	659,814	647,551
Accumulated other comprehensive income		(6,571)	(4,559)	(2,774)
Accumulated deficit		(542,676)	(456,285)	(429,908)
Total stockholders' equity		115,125	198,980	214,879
Total liabilities and stockholders' equity		1,072,481	1,119,958	1,036,762
Restatement Adjustments
Current assets
Accounts receivable, net		(1,668)	(2,424)	(2,608)
Reinsurance Balance Due		(4,391)	(4,720)	(3,403)
Prepaid expenses and other current assets		(1,002)	(668)	(334)
Total current assets		(7,061)	(7,812)	(6,345)
Goodwill		23,814	23,814	23,814
Total assets		16,753	16,002	17,469
Current liabilities
Accrued expenses and other current liabilities			(1,353)	(889)
Deferred revenue			557	283
Refundable customer deposits		2,718	2,372	2,030
Current debt		16,557	18,863	19,532
Total current liabilities		19,275	20,439	20,956
Total liabilities		19,275	20,439	20,956
Stockholders' equity
Accumulated deficit		(2,522)	(4,437)	(3,487)
Total stockholders' equity		(2,522)	(4,437)	(3,487)
Total liabilities and stockholders' equity		$ 16,753	$ 16,002	$ 17,469