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Organization and Summary of Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Revenues by Service Type | A summary of revenues by service type as a percentage of total revenues follows:
|  | Year Ended December 31,
|  | 2022 |  | 2021 |  | 2020
Patient service revenues: |  |  |  |  |  |
Surgical facilities revenues |  | 95.8 | % |  | 95.7 | % |  | 95.3 | %
Ancillary services revenues |  | 2.7 | % |  | 3.0 | % |  | 3.4 | %
Total patient service revenues |  | 98.5 | % |  | 98.7 | % |  | 98.7 | %
Other service revenues |  | 1.5 | % |  | 1.3 | % |  | 1.3 | %
Total revenues |  | 100.0 | % |  | 100.0 | % |  | 100.0 | %
Schedule of Revenue Sources for Patient Service Revenues | 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):
|  | Year Ended December 31,
|  | 2022 |  | 2021 |  | 2020
|  | Amount |  | % |  | Amount |  | % |  | Amount |  | %
Patient service revenues: |  |  |  |  |  |  |  |  |  |  |  |
Private insurance |  | $ | 1,288.0 |  |  | 51.5 | % |  | $ | 1,110.1 |  |  | 50.6 | % |  | $ | 989.9 |  |  | 53.9 | %
Government |  | 1,059.2 |  |  | 42.3 | % |  | 949.9 |  |  | 43.3 | % |  | 708.5 |  |  | 38.6 | %
Self-pay |  | 65.9 |  |  | 2.6 | % |  | 61.1 |  |  | 2.8 | % |  | 58.5 |  |  | 3.2 | %
Other (1) |  | 89.0 |  |  | 3.6 | % |  | 73.9 |  |  | 3.3 | % |  | 79.2 |  |  | 4.3 | %
Total patient service revenues |  | 2,502.1 |  |  | 100.0 | % |  | 2,195.0 |  |  | 100.0 | % |  | 1,836.1 |  |  | 100.0 | %
Other service revenues (2) |  | 37.2 |  |  |  |  | 30.1 |  |  |  |  | 24.0 |  |  |
Total revenues |  | $ | 2,539.3 |  |  |  |  | $ | 2,225.1 |  |  |  |  | $ | 1,860.1 |  |  |
(1)Other is comprised of anesthesia service agreements, auto liability, letters of protection and other payor types. (2)Includes amounts attributable to related parties of $15.7 million, $9.3 million and $9.9 million for the years ended December 31, 2022, 2021 and 2020, respectively.
Schedule of Rollforward of Non-Controlling Interests - Redeemable | A summary of activity related to the non-controlling interests—redeemable for the years ended December 31, 2022 and 2021 is as follows (in millions):
|  | December 31,
|  | 2022 |  | 2021
Balance at beginning of period |  | $ | 330.2 |  |  | $ | 306.8 |
Net income attributable to non-controlling interests—redeemable |  | 44.5 |  |  | 48.9 |
Acquisition and disposal of shares of non-controlling interests, net—redeemable |  | 10.4 |  |  | 17.9 |
Distributions to non-controlling interest —redeemable holders |  | (43.1) |  |  | (43.4) |
Balance at end of period |  | $ | 342.0 |  |  | $ | 330.2 |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | A summary of the carrying amounts and estimated fair values of the Company's long-term debt follows (in millions):
|  | Carrying Amount |  | Fair Value
|  | December 31, |  | December 31,
|  | 2022 |  | 2021 |  | 2022 |  | 2021
Senior secured term loan |  | $ | 1,370.0 |  |  | $ | 1,530.7 |  |  | $ | 1,359.7 |  |  | $ | 1,530.7 |
6.750% senior unsecured notes due 2025 |  | $ | 185.0 |  |  | $ | 370.0 |  |  | $ | 183.4 |  |  | $ | 371.9 |
10.000% senior unsecured notes due 2027 |  | $ | 320.0 |  |  | $ | 545.0 |  |  | $ | 326.8 |  |  | $ | 577.0 |

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