Investments in Other Entities - Equity Method Investments (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2021	Mar. 31, 2022	Mar. 31, 2021
Equity Method Investments [Roll Forward]
Beginning Balance		$ 41,715
Allocation of Income (Loss)		1,433	$ (677)
Funding		1,435
Distribution		(200)
Ending Balance		44,383
LaSalle Medical Associates – IPA Line of Business
Equity Method Investments [Roll Forward]
Beginning Balance		3,034
Allocation of Income (Loss)		1,258
Funding		0
Distribution		0
Ending Balance		4,292
Pacific Medical Imaging & Oncology Center, Inc.
Equity Method Investments [Roll Forward]
Beginning Balance		1,719
Allocation of Income (Loss)		6
Funding		0
Distribution		0
Ending Balance		1,725
531 W. College, LLC – related party
Equity Method Investments [Roll Forward]
Beginning Balance		17,230
Allocation of Income (Loss)		(182)
Funding		0
Distribution		0
Ending Balance		17,048
One MSO, LLC – related party
Equity Method Investments [Roll Forward]
Beginning Balance		2,910
Allocation of Income (Loss)		137	100
Funding		0
Distribution		(200)
Ending Balance		2,847
Tag-6 Medical Investment Group, LLC – related party
Equity Method Investments [Roll Forward]
Beginning Balance		4,830
Allocation of Income (Loss)		66
Funding		1,435
Distribution		0
Ending Balance		6,331
CAIPA MSO, LLC
Equity Method Investments [Roll Forward]
Beginning Balance	$ 11,700	11,992
Allocation of Income (Loss)		148	$ 0
Funding		0
Distribution		0
Ending Balance		$ 12,140