Medical Liabilities - Schedule of Medical Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Medical Liabilities [Roll Forward]
Medical liabilities, beginning of period	$ 55,783	$ 50,330
Components of medical care costs related to claims incurred:
Current period	153,535	83,329
Prior periods	(175)	(2,018)
Total medical care costs	153,360	81,311
Payments for medical care costs related to claims incurred:
Current period	(70,120)	(41,713)
Prior periods	(44,035)	(39,344)
Total paid	(114,155)	(81,057)
Adjustments	770	895
Medical liabilities, end of period	$ 95,758	$ 51,479