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Equity Method and Other Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Equity Method Investment income from equity method investments
Equity investment income (loss) from equity method investments in nonconsolidated dialysis partnerships.	$ 8,454	$ 9,141	$ 15,274	$ 16,187
Other Nonoperating Income (Expense)
Equity Method Investment income from equity method investments
Income (Loss ) From Other Equity Method Investments			(15,568)	(1,538)
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.			$ 15,274	$ 16,187

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