Organization and Summary of Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenues

A summary of revenues by service type as a percentage of total revenues follows:

	Three Months Ended March 31,
	2023		2022
Patient service revenues:
Surgical facilities revenues	96.0	%	95.7	%
Ancillary services revenues	2.5	%	2.9	%
Total patient service revenues	98.5	%	98.6	%
Other service revenues	1.5	%	1.4	%
Total revenues	100.0	%	100.0	%

The following table sets forth patient service revenues by type of payor and as a percentage of total patient service revenues for the Company's consolidated surgical facilities (dollars in millions):

	Three Months Ended March 31,
	2023				2022
	Amount		%		Amount		%
Patient service revenues:
Private insurance	$	335.6	51.1	%	$	300.2	51.1	%
Government	287.8		43.8	%	249.0		42.4	%
Self-pay	15.6		2.4	%	16.8		2.9	%
Other (1)	17.4		2.7	%	21.7		3.6	%
Total patient service revenues	656.4		100.0	%	587.7		100.0	%
Other service revenues	9.8				8.5
Total revenues	$	666.2			$	596.2

(1)Other is comprised of anesthesia service agreements, automobile liability, letters of protection and other payor types.

Schedule of Rollforward of Goodwill

A summary of activity related to goodwill for the three months ended March 31, 2023 is as follows (in millions):

Balance at December 31, 2022	$	4,137.1
Acquisitions, including post acquisition adjustments	91.3
Disposals	(11.1)
Balance at March 31, 2023	$	4,217.3

Schedule of Rollforward of Noncontrolling Interest - Redeemable

A summary of activity related to non-controlling interests—redeemable is as follows (in millions):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	342.0	$	330.2
Net income attributable to non-controlling interests—redeemable	7.8		10.6
Acquisition of shares of non-controlling interests, net—redeemable	7.7		12.3
Distributions to non-controlling interest—redeemable holders	(11.7)		(11.6)
Balance at end of period	$	345.8	$	341.5

Schedule of Carrying Amounts and Fair Values of Long-Term Debt

A summary of the carrying amounts and estimated fair values of the Company's long-term debt follows (in millions):

	Carrying Amount				Fair Value
	March 31, 2023		December 31, 2022		March 31, 2023		December 31, 2022
Senior secured term loan	$	1,370.1	$	1,370.0	$	1,353.0	$	1,359.7
6.750% senior unsecured notes due 2025	$	185.0	$	185.0	$	181.5	$	183.4
10.000% senior unsecured notes due 2027	$	320.0	$	320.0	$	326.4	$	326.8