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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 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Basic:        
Net income attributable to DaVita Inc. $ 571,332 $ 215,872 $ 722,148 $ 275,732
Weighted average shares outstanding during the period 205,955,000 214,569,000 206,401,000 215,108,000
Contingently returnable shares held in escrow for the DaVita HealthCare Partners merger (2,194,000) (2,194,000) (2,194,000) (2,194,000)
Weighted average shares for basic earnings per share calculation 203,761,433 212,374,897 204,206,979 212,914,126
Basic net income per share attributable to DaVita Inc. $ 2.80 $ 1.02 $ 3.54 $ 1.30
Diluted:        
Net income attributable to DaVita Inc. $ 571,332 $ 215,872 $ 722,148 $ 275,732
Weighted average shares outstanding during the period 205,955,000 214,569,000 206,401,000 215,108,000
Assumed incremental shares from stock plans 1,006,000 2,122,000 1,243,000 2,313,000
Weighted average shares for diluted earnings per share calculation 206,961,450 216,691,461 207,643,794 217,421,213
Diluted net income per share attributable to DaVita Inc. $ 2.76 $ 1.00 $ 3.48 $ 1.27
Anti-dilutive potential common shares excluded from calculation [1] 2,375,000 1,184,000 2,153,000 1,092,000
[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