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Earnings Per Share - Reconciliations of Numerators and Denominators Used to Calculate Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ 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
Numerators: |  |  |  |  |  |  |  |  |  |  |
Net income from continuing operations | $ 193,406 | $ 158,674 | $ 201,602 | $ 229,613 | $ 242,242 | $ 150,113 | $ 194,223 | $ 120,254 | $ 783,295 | $ 706,832 | $ 624,321
Discontinued operations | (19,633) | 0 | 0 | 9,980 | 2,629 | (6,843) | 79,328 | 29,035 | (9,653) | 104,149 | (464,927)
Net 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
Weighted Average Number of Shares Outstanding Reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding during the period (in shares) |  |  |  |  |  |  |  |  | 119,797,000 | 153,181,000 | 171,886,000
Weighted average contingently returnable shares (in shares) |  |  |  |  |  |  |  |  | 0 | 0 | (1,100,000)
Weighted average shares - basic (in shares) |  |  |  |  |  |  |  |  | 119,797,000 | 153,181,000 | 170,786,000
Weighted average contingently returnable shares attributable to dilutive effect (shares) |  |  |  |  |  |  |  |  | 0 | 0 | 1,100,000
Assumed incremental shares from stock plans (in shares) |  |  |  |  |  |  |  |  | 2,826,000 | 631,000 | 479,000
Weighted average shares - diluted (in shares) |  |  |  |  |  |  |  |  | 122,623,000 | 153,812,000 | 172,365,000
Basic net income (loss) attributable to DaVita Inc.: |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations, Per Basic Share | $ 1.73 | $ 1.31 | $ 1.65 | $ 1.84 | $ 1.87 | $ 1.00 | $ 1.17 | $ 0.72 | $ 6.54 | $ 4.61 | $ 3.66
Basic net loss from discontinued operations per share attributable to DaVita Inc. (in usd per share) | (0.17) | 0 | 0 | 0.08 | 0.02 | (0.05) | 0.47 | 0.18 | (0.08) | 0.68 | (2.73)
Basic net income per share attributable to DaVita Inc. (in usd per share) | 1.56 | 1.31 | 1.65 | 1.92 | 1.89 | 0.95 | 1.64 | 0.90 | 6.46 | 5.29 | 0.93
Diluted net income (loss) attributable to DaVita Inc.: |  |  |  |  |  |  |  |  |  |  |
Diluted net income from continuing operations per share attributable to DaVita Inc. (in usd per share) | 1.67 | 1.28 | 1.62 | 1.81 | 1.86 | 0.99 | 1.16 | 0.72 | 6.39 | 4.60 | 3.62
Diluted net loss from discontinued operations per share attributable to DaVita Inc. (in usd per share) | (0.17) | 0 | 0 | 0.08 | 0.02 | (0.04) | 0.48 | 0.18 | (0.08) | 0.67 | (2.70)
Diluted net income per share attributable to DaVita Inc. (in usd per share) | $ 1.50 | $ 1.28 | $ 1.62 | $ 1.89 | $ 1.88 | $ 0.95 | $ 1.64 | $ 0.90 | $ 6.31 | $ 5.27 | $ 0.92
Anti-dilutive stock-settled awards excluded from calculation (in shares) |  |  |  |  |  |  |  |  | 2,301,000 | 5,936,000 | 5,295,000

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