Summary of Significant Accounting Policies - Schedule of Earned Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Earned premiums	$ 3,911,718	$ 2,671,931	$ 1,800,933
Premium
Disaggregation of Revenue [Line Items]
Earned premiums	3,906,651	2,666,813	1,668,131
Capitation
Disaggregation of Revenue [Line Items]
Earned premiums	$ 5,067	$ 5,118	$ 132,802