Investments in Other Entities - Equity Method Investments (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2021	Mar. 31, 2023	Mar. 31, 2022
Equity Method Investments [Roll Forward]
Beginning Balance		$ 40,299
Initial Investment		325
Allocation of Income (Loss)		2,484	$ 1,433
Funding		0
Distribution		0
Ending Balance		43,108
LaSalle Medical Associates – IPA Line of Business
Equity Method Investments [Roll Forward]
Beginning Balance		5,684
Initial Investment		0
Allocation of Income (Loss)		2,165
Funding		0
Distribution		0
Ending Balance		7,849
Pacific Medical Imaging & Oncology Center, Inc.
Equity Method Investments [Roll Forward]
Beginning Balance		1,878
Initial Investment		0
Allocation of Income (Loss)		8
Funding		0
Distribution		0
Ending Balance		1,886
531 W. College, LLC
Equity Method Investments [Roll Forward]
Beginning Balance		17,281
Initial Investment		0
Allocation of Income (Loss)		(90)
Funding		0
Distribution		0
Ending Balance		17,191
One MSO, LLC
Equity Method Investments [Roll Forward]
Beginning Balance		2,718
Initial Investment		0
Allocation of Income (Loss)		115	100
Funding		0
Distribution		0
Ending Balance		2,833
CAIPA MSO, LLC
Equity Method Investments [Roll Forward]
Beginning Balance	$ 11,700	12,738
Initial Investment		0
Allocation of Income (Loss)		249	$ 100
Funding		0
Entity Consolidated		0
Ending Balance		12,987
James Song, M.D., A Professional Corporation
Equity Method Investments [Roll Forward]
Beginning Balance		0
Initial Investment		325
Allocation of Income (Loss)		37
Funding		0
Entity Consolidated		0
Ending Balance		$ 362