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Shareholder's equity Effects of Changes in DaVita Inc's Ownership Interest (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net (loss) income attributable to DaVita Inc. | $ 173,773 | $ 158,674 | $ 201,602 | $ 239,593 | $ 244,871 | $ 143,270 | $ 273,551 | $ 149,289 | $ 773,642 | $ 810,981 | $ 159,394
Additional paid-in capital |  |  |  |  |  |  |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net [Abstract] |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) In Paid-In Capital for Sales of Noncontrolling Interests |  |  |  |  |  |  |  |  | 0 | 0 | 79
Purchase of noncontrolling interests |  |  |  |  |  |  |  |  | 4,364 | (37,145) | (17,897)
Purchase of noncontrolling interests |  |  |  |  |  |  |  |  | 4,364 |  |
Noncontrolling Interest, Period Increase (Decrease) |  |  |  |  |  |  |  |  | 4,364 | (37,145) | (17,818)
Net Income Attributable To Parent Net Of Transfers To Noncontrolling Interests. |  |  |  |  |  |  |  |  | $ 778,006 | $ 773,836 | $ 141,576

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