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Equity Method and Other Investments - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Equity Method Investment income from equity method investments        
Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships. $ 5,481 $ 8,454 $ 12,163 $ 15,274
Other Nonoperating Income (Expense)        
Equity Method Investment income from equity method investments        
Equity investment income (loss) from other equity method investments     (54,633) (15,568)
Equity Method Investments In Nonconsolidated Dialysis Partnerships [Member]        
Equity Method Investment income from equity method investments        
Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships.     $ 12,163 $ 15,274