Intangible Assets, Net - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (124,895)	$ (118,611)
Total	72,271
Indefinite-lived Intangible Assets [Line Items]
Intangible Assets, Gross	199,316	195,472
Intangible Assets, Net	74,421	76,861
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite lived assets:	2,150	2,150
Network relationships
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross	150,679	150,679
Accumulated Amortization	(100,244)	(95,451)
Total	$ 50,435	$ 55,228
Network relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	11 years	11 years
Network relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	21 years	21 years
Management contracts
Finite-Lived Intangible Assets [Line Items]
Useful Life	15 years	15 years
Amortized intangible assets, Gross	$ 22,832	$ 22,832
Accumulated Amortization	(15,982)	(15,208)
Total	6,850	$ 7,624
Member relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life		12 years
Amortized intangible assets, Gross	20,477	$ 16,633
Accumulated Amortization	(6,302)	(5,619)
Total	$ 14,175	$ 11,014
Member relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Member relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	14 years
Patient management platform
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years	5 years
Amortized intangible assets, Gross	$ 2,060	$ 2,060
Accumulated Amortization	(2,060)	(2,060)
Total	$ 0	$ 0
Tradename/trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life	20 years	20 years
Amortized intangible assets, Gross	$ 1,011	$ 1,011
Accumulated Amortization	(282)	(257)
Total	$ 729	$ 754
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life	6 years	6 years
Amortized intangible assets, Gross	$ 107	$ 107
Accumulated Amortization	(25)	(16)
Total	$ 82	$ 91