Segment Reporting and Disaggregated Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenues	$ 80,826	$ 188,431	$ 141,919	$ 336,823
Earned premium, net	251,956	177,785	491,598	347,140
Net investment income	11,003	9,416	21,266	18,474
Net investment gains	7,179	1,194	4,890	879
Finance revenue	3,858	2,483	6,979	4,329
Total revenue	354,822	379,309	666,652	707,645
Insurance
Disaggregation of Revenue [Line Items]
Revenues	45,026	164,028	83,588	285,180
Earned premium, net	251,956	177,785	491,598	347,140
Net investment income	10,731	9,287	20,745	18,170
Net investment gains	7,179	1,194	4,890	879
Finance revenue	0	0	0	0
Total revenue	314,892	352,294	600,821	651,369
Marketplace
Disaggregation of Revenue [Line Items]
Revenues	35,800	24,403	58,331	51,643
Earned premium, net	0	0	0	0
Net investment income	272	129	521	304
Net investment gains	0	0	0	0
Finance revenue	3,858	2,483	6,979	4,329
Total revenue	39,930	27,015	65,831	56,276
United States
Disaggregation of Revenue [Line Items]
Revenues	47,602	166,685	95,611	308,080
United States \| Insurance
Disaggregation of Revenue [Line Items]
Revenues	29,153	149,030	60,131	264,330
United States \| Marketplace
Disaggregation of Revenue [Line Items]
Revenues	18,449	17,655	35,480	43,750
International
Disaggregation of Revenue [Line Items]
Revenues	33,224	21,746	46,308	28,743
International \| Insurance
Disaggregation of Revenue [Line Items]
Revenues	15,873	14,998	23,457	20,850
International \| Marketplace
Disaggregation of Revenue [Line Items]
Revenues	$ 17,351	$ 6,748	$ 22,851	$ 7,893

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