Medical Liabilities (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Medical Liabilities [Roll Forward]
Medical liabilities, beginning of period		$ 106,657	$ 81,255
Acquired* (see Note 3)	[1]	32,106	6,157
Components of medical care costs related to claims incurred:
Current period		797,906	642,880
Prior periods		(7,890)	(13,251)
Total medical care costs		790,016	629,629
Payments for medical care costs related to claims incurred:
Current period		(654,625)	(547,212)
Prior periods		(112,847)	(74,966)
Total paid		(767,472)	(622,178)
Adjustments		(1,028)	2,656
Medical liabilities, end of period		$ 160,279	$ 97,519

[1] *The acquired balance includes medical liabilities from current and prior periods.