Organization and Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
Dec. 31, 2025 entity country patient clinic state
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Medicare Payment Rate Established By Statute Or Regulation For The Portion Of Payment Rates Paid By The Government Payor	80.00%
Number of legal entities that third parties held noncontrolling equity interests \| entity	740
United States
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of dialysis centers that the company operated or provided administrative services \| clinic	2,657
Number of states where dialysis centers are located \| state	46
Number of patients served \| patient	200,500
International
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of dialysis centers that the company operated or provided administrative services \| clinic	585
Number of patients served \| patient	94,500
Number of countries in which dialysis centers located \| country	14

Medicare Payment Rate Established By Statute Or Regulation For The Portion Of Payment Rates Paid By The Government Payor

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Number of customers.

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Number of entities that third parties held non controlling equity interests.

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Number of sites.

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Organization consolidation and presentation of financial statements disclosure.

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The number of countries in which the entity operates as of balance sheet date.

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The number of states the entity operates in as of the balance sheet date.

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