Investments in Other Entities - Equity Method (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity Method Investments [Roll Forward]
Beginning Balance	$ 43,292
Initial Investment	11,724
Allocation of Income (Loss)	(4,306)	$ 3,694	$ (6,901)
Contribution	1,898
Sale	(4,182)
Consolidation of Entity	(6,711)
Ending Balance	41,715	43,292
LaSalle Medical Associates – IPA Line of Business
Equity Method Investments [Roll Forward]
Beginning Balance	13,047
Initial Investment	0
Allocation of Income (Loss)	(5,831)
Contribution	0
Sale	(4,182)
Consolidation of Entity	0
Ending Balance	3,034	13,047
Pacific Medical Imaging & Oncology Center, Inc.
Equity Method Investments [Roll Forward]
Beginning Balance	1,413
Initial Investment	0
Allocation of Income (Loss)	306
Contribution	0
Sale	0
Consolidation of Entity	0
Ending Balance	1,719	1,413
Diagnostic Medical Group
Equity Method Investments [Roll Forward]
Beginning Balance	2,613
Initial Investment	0
Allocation of Income (Loss)	330
Contribution	0
Sale	0
Consolidation of Entity	(2,943)
Ending Balance	0	2,613
531 W. College, LLC – related party
Equity Method Investments [Roll Forward]
Beginning Balance	17,200
Initial Investment	0
Allocation of Income (Loss)	(208)
Contribution	238
Sale	0
Consolidation of Entity	0
Ending Balance	17,230	17,200
One MSO, LLC — related party
Equity Method Investments [Roll Forward]
Beginning Balance	2,395
Initial Investment	0
Allocation of Income (Loss)	515
Contribution	0
Sale	0
Consolidation of Entity	0
Ending Balance	2,910	2,395
Tag-6 Medical Investment Group, LLC — related party
Equity Method Investments [Roll Forward]
Beginning Balance	4,516
Initial Investment	0
Allocation of Income (Loss)	314
Contribution	0
Sale	0
Consolidation of Entity	0
Ending Balance	4,830	4,516
Tag-8 Medical Investment Group, LLC — related party
Equity Method Investments [Roll Forward]
Beginning Balance	2,108
Initial Investment	0
Allocation of Income (Loss)	0
Contribution	1,660
Sale	0
Consolidation of Entity	(3,768)
Ending Balance	0	2,108
CAIPA MSO, LLC
Equity Method Investments [Roll Forward]
Beginning Balance	0
Initial Investment	11,724
Allocation of Income (Loss)	268
Contribution	0
Sale	0
Consolidation of Entity	0
Ending Balance	$ 11,992	$ 0