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Equity Method and Other Investments - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Equity Method Investment income from equity method investments |  |  |
Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships. | $ 26,520 | $ 26,937 | $ 26,916
Equity method investment, significant impairments and other valuation adjustments |  | 0 | 0
Other (loss) income |  |  |
Equity Method Investment income from equity method investments |  |  |
Equity investment income (loss) from other equity method investments | (4,703) | (1,292) | 0
Equity method investment, significant impairments and other valuation adjustments | $ 20,154 |  |
Company and Restricted Subsidiaries(1) |  |  |
Equity Method Investment income from equity method investments |  |  |
Ownership percentage by the Company | 75.00% |  |
APAC joint venture |  |  |
Equity Method Investment income from equity method investments |  |  |
Current economic interest in the APAC JV, Owned by Other Noncontrolling Investors | 25.00% |  |
Minimum | Company and Restricted Subsidiaries(1) |  |  |
Equity Method Investment income from equity method investments |  |  |
Ownership percentage by the Company | 30.00% |  |
Maximum | Company and Restricted Subsidiaries(1) |  |  |
Equity Method Investment income from equity method investments |  |  |
Ownership percentage by the Company | 65.00% |  |
Equity Method Investments In Nonconsolidated Dialysis Partnerships |  |  |
Equity Method Investment income from equity method investments |  |  |
Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships. | $ 26,520 | $ 26,937 | $ 26,916
Number of equity method investments | 23 |  |

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