Equity Method and Other Investments Equity Method and Other Investments (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
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| Schedule of Equity Method and Other Investments [Line Items] | |||||
| Equity method and other investments | $ 404,305 | $ 404,305 | $ 157,249 | ||
| Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships. | 8,237 | $ 10,162 | 24,765 | $ 23,135 | |
| Adjusted cost method and other investments | |||||
| Schedule of Equity Method and Other Investments [Line Items] | |||||
| Equity method and other investments | 49,516 | 49,516 | 23,763 | ||
| Equity method partnerships | |||||
| Schedule of Equity Method and Other Investments [Line Items] | |||||
| Equity method and other investments | $ 354,789 | $ 354,789 | $ 133,486 | ||
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- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in equity method investee and investment in and advance to affiliate. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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