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Summary of Significant Accounting Policies - Schedule of Earned Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total	$ 983,681	$ 684,496	$ 2,907,927	$ 1,980,146
Premium
Disaggregation of Revenue [Line Items]
Total	982,634	683,270	2,903,836	1,976,524
Capitation
Disaggregation of Revenue [Line Items]
Total	$ 1,047	$ 1,226	$ 4,091	$ 3,622

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