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Changes in DaVita Inc.'s ownership interest in consolidated subsidiaries - Effects of Changes in DaVita Inc's Ownership Interest on Company's Equity (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net income (loss) attributable to DaVita Inc.	$ (136,796)	$ (214,476)	$ 309,166	$ 360,222
Sales of noncontrolling interests	0	0	79	0
Purchases of noncontrolling interests	(5,285)		(17,482)
Purchases of noncontrolling Interests		0		195
Net transfers to noncontrolling interests	(5,285)	0	(17,403)	195
Net income attributable to DaVita Inc., net of transfers to noncontrolling interests	(142,081)	(214,476)	291,763	360,417
DaVita Inc. | Reportable Legal Entities
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net income (loss) attributable to DaVita Inc.	$ (136,796)	$ (214,476)	$ 309,166	$ 360,222

X

- Definition

Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase or Sale Of Interest By Parent.

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This element represents the total net income attributable to the parent for the period and the effect of net changes during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not result in a deconsolidation of the subsidiary from the consolidated financial statements.

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-Publisher FASB
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The increase (decrease) during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not arise in a deconsolidation of the subsidiary from the consolidated financial statements.

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- Definition

Represents the purchase by the parent of an additional equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The purchase of the additional equity interest represented by this element increases the parent's controlling interest in the subsidiary.

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Represents a sale by the parent of a portion of its equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The sale of the equity interest represented by this element does not result in a loss of control by the parent.

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Amount after income tax of income (loss) including the portion attributable to nonredeemable noncontrolling interest. Excludes the portion attributable to redeemable noncontrolling interest recognized as temporary equity.

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