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v3.23.1

Segment reporting - Summary of Segment Net Revenues, Segment Operating Income (Loss) and Reconciliation of Segment Income to Consolidated Income Before Income Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |
Other revenues | $ 112,665 | $ 101,274
Total revenues | 2,872,699 | 2,817,555
Operating income (loss) | 311,645 | 338,308
Corporate administrative support | (24,588) | (35,827)
Debt expense | (100,774) | (73,791)
Other income (loss), net | 3,752 | (1,786)
Income before income taxes | 214,623 | 262,731
U.S. dialysis |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 2,590,113 | 2,552,927
Other—Ancillary services |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 282,586 | 264,628
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 2,896,114 | 2,839,724
Operating income (loss) | 336,233 | 374,135
Operating Segments | U.S. dialysis |  |
Segment Reporting Information [Line Items] |  |
Dialysis patient service revenues | 2,605,980 | 2,569,120
Total revenues | 2,612,160 | 2,575,096
Operating income (loss) | 361,098 | 406,440
Operating Segments | U.S. dialysis | External Sources |  |
Segment Reporting Information [Line Items] |  |
Dialysis patient service revenues | 2,583,933 | 2,546,961
Other revenues | 6,180 | 5,966
Operating Segments | U.S. dialysis | Intersubsegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Dialysis patient service revenues | 22,047 | 22,159
Other revenues | 0 | 10
Operating Segments | Other—Ancillary services |  |
Segment Reporting Information [Line Items] |  |
Dialysis patient service revenues | 176,101 | 169,320
Other revenues | 106,485 | 95,308
Total revenues | 283,954 | 264,628
Operating income (loss) | (24,865) | (32,305)
Operating Segments | Other—Ancillary services | Intersubsegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Dialysis patient service revenues | 1,368 | 0
Intersegment Elimination |  |
Segment Reporting Information [Line Items] |  |
Total revenues | (23,415) | (22,169)
Intersegment Elimination | U.S. dialysis |  |
Segment Reporting Information [Line Items] |  |
Total revenues | (22,047) | (22,169)
Intersegment Elimination | Other—Ancillary services |  |
Segment Reporting Information [Line Items] |  |
Total revenues | $ (1,368) |

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