Medical Claims and Related Payables - Summary Changes in Medical Claims and Related Payables (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Medical claims and related payables, beginning of the year	$ 339,748	$ 239,014
Components of incurred costs related to:
Current year	1,937,219	1,140,375
Prior years	44,342	12,973
Incurred cost related to claims	1,981,561	1,153,119
Claims paid related to:
Current year	(882,649)	(706,478)
Prior years	(351,700)	(227,777)
Claims paid related	(1,234,349)	(934,095)
Medical claims and related payables, end of the period	1,086,960	458,038
Discontinued Operations
Components of incurred costs related to:
Prior Year Claims And Claims Adjustment Recovery	0	(229)
Claims paid related to:
Discontinued operations - prior years	$ 0	$ 160

Liability For Claims And Claims Adjustment Expense, Including Amounts Recoverable

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Liability For Unpaid Claims And Claims Adjustment Expense, Receivables

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Prior Year Claims And Claims Adjustment Recovery

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Amount, after effects of reinsurance, of payments to settle claims incurred in the current period and related claims settlement costs.

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Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs.

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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount, after effects of reinsurance, of payments to settle insured claims and pay costs incurred in the claims settlement process.

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Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.

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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

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