Segment reporting - Summary of Expenditures for Property and Equipment by Segment (Detail) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Segment Reporting [Line Items] | ||
| Expenditures for property and equipment | $ 431,323 | $ 430,434 |
| Segment Reporting, Long-Lived Asset, Expenditure for Addition | 431,323 | 430,434 |
| U. S. Dialysis And Related Lab Services | ||
| Segment Reporting [Line Items] | ||
| Segment Reporting, Long-Lived Asset, Expenditure for Addition | 355,773 | 349,646 |
| Other Operating Segment | ||
| Segment Reporting [Line Items] | ||
| Segment Reporting, Long-Lived Asset, Expenditure for Addition | $ 75,550 | $ 80,788 |
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenditure for addition to long-lived asset included in determination of segment asset by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Long-lived asset excludes financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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