Summary of Significant Accounting Policies - Schedule of Earned Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Earned premiums	$ 1,006,203	$ 674,094	$ 1,924,246	$ 1,295,650
Premium
Disaggregation of Revenue [Line Items]
Earned premiums	1,004,580	673,532	1,921,202	1,293,254
Capitation
Disaggregation of Revenue [Line Items]
Earned premiums	$ 1,623	$ 562	$ 3,044	$ 2,396

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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+ Details