Business acquisition contingent consideration revenue earn-out period.

No definition available.

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- Definition

Number of dialysis centers acquired.

+ References

No definition available.

+ Details

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- Definition

Number of dialysis patients.

+ References

No definition available.

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- Definition

Number of states in which dialysis clinic acquired.

+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e845-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Acquisition Date
-URI http://asc.fasb.org/extlink&oid=6919109

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

+ Details

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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476

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-SubTopic 30
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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

+ Details

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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-Paragraph 1
-Subparagraph (c)
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- Definition

The amount of liabilities recognized recorded in a transaction with the acquiree for each transaction that is recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

+ References

No definition available.

+ Details

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company before stock transaction.

+ References

No definition available.

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Acquisitions and Divestitures - Additional Information (Detail) $ in Thousands				1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 01, 2016 USD ($)	Mar. 01, 2016 USD ($)	Aug. 17, 2015 USD ($) Clinic State Patient	Dec. 31, 2012 Entity	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($) Entity	Jun. 30, 2015 USD ($)
Business Acquisition [Line Items]
Gain (loss) on sales of business interests					$ 29,791	$ 29,791
Cash paid to acquire business						$ 473,314	$ 45,059
Amortizable intangible assets acquired, weighted-average estimated useful lives						8 years
Goodwill deductible for tax purposes associated with acquisitions					72,190	$ 72,190
Other Accrued Liabilities
Business Acquisition [Line Items]
Fair value of contingent earn-out consideration					18,148	18,148
Other long-term liabilities
Business Acquisition [Line Items]
Fair value of contingent earn-out consideration					1,486	1,486
Other companies
Business Acquisition [Line Items]
Additional cash consideration in the form of earn-out payments					98,600	98,600
Fair value of contingent earn-out consideration					19,634	$ 19,634
Minimum \| Other companies \| EBITDA or Operating Income Performance Targets or Quality Margins
Business Acquisition [Line Items]
Earn-out consideration payment period						1 year
Maximum \| Other companies \| EBITDA or Operating Income Performance Targets or Quality Margins
Business Acquisition [Line Items]
Earn-out consideration payment period						2 years
Noncompetition agreements
Business Acquisition [Line Items]
Amortizable intangible assets acquired, weighted-average estimated useful lives						7 years
HealthCare Partners (HCP) \| Arizona
Business Acquisition [Line Items]
Gain (loss) on sales of business interests	$ 10,489
HealthCare Partners (HCP) \| Tandigm Health
Business Acquisition [Line Items]
Ownership interest, before sale						50.00%
Ownership interest, after sale						19.00%
Gain (loss) on sales of business interests						$ 40,280
Everett Clinic Medical Group (TEC)
Business Acquisition [Line Items]
Date of acquisition agreement						Nov. 23, 2015
Effective date of acquisition						Mar. 01, 2016
Cash paid to acquire business		$ 398,094
Assumptions of certain liabilities		$ 7,284
Ownership interest percentage		100.00%
Amortizable intangible assets acquired, weighted-average estimated useful lives						6 years
Goodwill deductible for tax purposes associated with acquisitions					$ 0	$ 0
Dialysis businesses and other businesses
Business Acquisition [Line Items]
Cash paid to acquire business						75,220
Number of businesses acquired \| Entity				2
Deferred purchase price obligations						$ 3,387
Dialysis businesses and other businesses \| U.S. Dialysis And Related Lab Services
Business Acquisition [Line Items]
Number of businesses acquired \| Entity						4
Dialysis businesses and other businesses \| Other Segments \| Foreign Dialysis Centers
Business Acquisition [Line Items]
Number of businesses acquired \| Entity						3
Dialysis businesses and other businesses \| Other Segments \| Other Medical Businesses
Business Acquisition [Line Items]
Number of businesses acquired \| Entity						3
Renal Ventures Limited, LLC
Business Acquisition [Line Items]
Cash paid to acquire business			$ 415,000
Ownership interest percentage			100.00%
Number of dialysis clinics venture operations \| Clinic			36
Number of dialysis clinics venture operations states \| State			6
Number of dialysis clinic patients \| Patient			2,400