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Reconciliations of Numerators and Denominators Used to Calculate Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Basic:        
Net income attributable to DaVita Inc. $ 127,001 $ 53,382 $ 574,698 $ 150,816
Weighted average shares outstanding during the period 193,282,000 206,692,000 193,923,000 206,626,000
Contingently returnable shares held in escrow for the DaVita HealthCare Partners merger (in shares) (2,194,000) (2,194,000) (2,194,000) (2,194,000)
Weighted average shares for basic earnings per share calculation (in shares) 191,088,216 204,497,970 191,728,913 204,432,315
Basic net income per share attributable to DaVita Inc. (usd per share) $ 0.66 $ 0.26 $ 3.00 $ 0.74
Diluted:        
Net income attributable to DaVita Inc. $ 127,001 $ 53,382 $ 574,698 $ 150,816
Weighted average shares outstanding during the period 193,282,000 206,692,000 193,923,000 206,626,000
Assumed incremental shares from stock plans (in shares) 706,000 1,355,000 708,000 1,362,000
Weighted average shares for diluted earnings per share calculation (in shares) 193,987,983 208,047,172 194,630,936 207,987,530
Diluted net income per share attributable to DaVita Inc. (usd per share) $ 0.65 $ 0.26 $ 2.95 $ 0.73
Anti-dilutive potential common shares excluded from calculation (in shares) [1] 3,780,000 1,811,000 3,603,000 2,042,000
[1] Shares associated with stock-settled stock appreciation rights that are excluded from the diluted denominator calculation because they are anti-dilutive under the treasury stock method.