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Earnings per share Earnings per share - Reconciliation of numberators and denominators used to calculate basic and diluted earnings per share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Numerators:        
Net income from continuing operations attributable to DaVita Inc. $ 259,754 $ 158,674 $ 790,977 $ 589,889
Net income from discontinued operations attributable to DaVita Inc. 0 0 0 9,980
Net income attributable to DaVita Inc. $ 259,754 $ 158,674 $ 790,977 $ 599,869
Weighted average shares outstanding during period 104,793,000 120,905,000 106,685,000 122,582,000
Assumed incremental from stock plans 5,045,000 3,049,000 4,981,000 2,345,000
Weighted average shares for diluted earnings per share calculation 109,838,000 123,954,000 111,666,000 124,927,000
Basic:        
Basic net income from continuing operations per share $ 2.48 $ 1.31 $ 7.41 $ 4.81
Basic net income (loss) from discontinued operations per share 0 0 0 0.08
Basic net income per share attributable to DaVita Inc. 2.48 1.31 7.41 4.89
Diluted:        
Diluted net income from continuing operations per share 2.36 1.28 7.08 4.72
Diluted net income from discontinued operations per share 0 0 0 0.08
Diluted net income per share attributable to DaVita Inc. $ 2.36 $ 1.28 $ 7.08 $ 4.80
Anti-dilutive stock-settled awards excluded from calculation 141,000 2,765,000 103,000 3,063,000