Intangible Assets, Net - Schedule of Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	$ 202,916,000	$ 195,472,000
Additions	72,138,000	7,444,000
Impairment of intangible assets	0	0	$ 0
Impairment/ Disposal	0	0	0
Impairment/ Disposal	0	0
Intangible Assets, Gross	275,054,000	202,916,000	195,472,000
Accumulated Amortization	(156,875,000)	(131,268,000)
Intangible Assets, Net	114,129,000
Intangible Assets, Net	118,179,000	71,648,000
Network relationships
Finite-Lived Intangible Assets [Line Items]
Beginning Balance, Gross	150,679,000	150,679,000
Additions	21,238,000	0
Impairment/ Disposal	0	0
Ending Balance, Gross	171,917,000	150,679,000	150,679,000
Accumulated Amortization	(114,046,000)	(104,859,000)
Intangible Assets, Net	$ 57,871,000	$ 45,820,000
Network relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	10 years	11 years
Network relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	21 years	21 years
Management contracts
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	15 years	15 years
Beginning Balance, Gross	$ 22,832,000	$ 22,832,000
Additions	0	0
Impairment/ Disposal	0	0
Ending Balance, Gross	22,832,000	22,832,000	22,832,000
Accumulated Amortization	(17,953,000)	(16,662,000)
Intangible Assets, Net	4,879,000	6,170,000
Member relationships
Finite-Lived Intangible Assets [Line Items]
Beginning Balance, Gross	24,077,000	16,633,000
Additions	49,000,000	7,444,000
Impairment/ Disposal	0	0
Ending Balance, Gross	73,077,000	24,077,000	16,633,000
Accumulated Amortization	(22,406,000)	(7,345,000)
Intangible Assets, Net	$ 50,671,000	$ 16,732,000
Member relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	7 years	10 years
Member relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	14 years	14 years
Patient management platform
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	5 years	5 years
Beginning Balance, Gross	$ 2,060,000	$ 2,060,000
Additions	0	0
Impairment/ Disposal	0	0
Ending Balance, Gross	2,060,000	2,060,000	2,060,000
Accumulated Amortization	(2,060,000)	(2,060,000)
Intangible Assets, Net	$ 0	$ 0
Tradename/trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	20 years	20 years
Beginning Balance, Gross	$ 1,011,000	$ 1,011,000
Additions	0	0
Impairment/ Disposal	0	0
Ending Balance, Gross	1,011,000	1,011,000	1,011,000
Accumulated Amortization	(358,000)	(308,000)
Intangible Assets, Net	$ 653,000	$ 703,000
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	6 years	6 years
Beginning Balance, Gross	$ 107,000	$ 107,000
Additions	0	0
Impairment/ Disposal	0	0
Ending Balance, Gross	107,000	107,000	107,000
Accumulated Amortization	(52,000)	(34,000)
Intangible Assets, Net	55,000	73,000
Trademarks
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	2,150,000	2,150,000
Additions	0	0
Impairment of intangible assets	0	0
Ending Balance	2,150,000	2,150,000	2,150,000
Intangible Assets, Net	2,150,000	2,150,000	$ 2,150,000
Licenses
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	0
Additions	1,900,000
Impairment of intangible assets	0
Ending Balance	1,900,000	0
Intangible Assets, Net	$ 1,900,000	$ 0