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Summary of Assets by Segment (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Property and equipment, net	$ 3,175,367	$ 2,788,740
Equity investments	502,389	78,368
U.S. Dialysis And Related Lab Services
Segment Reporting Information [Line Items]
Equity investments	66,924	29,801
DaVita Medical Group (DMG)
Segment Reporting Information [Line Items]
Equity investments	10,350	22,714
Other-Ancillary services and strategic initiatives
Segment Reporting Information [Line Items]
Equity investments	425,115	20,853
Outside United States | Other-Ancillary services and strategic initiatives
Segment Reporting Information [Line Items]
Property and equipment, net	$ 96,396	$ 69,519

X

- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.7-03(a)(8))
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-Name Accounting Standards Codification
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