Percentage change in discount rate used to evaluate fair value of reporting unit for goodwill assessment.

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- Definition

Percentage change in operating income used to evaluate fair value of reporting unit for goodwill assessment.

+ References

No definition available.

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- Definition

Reporting unit percentage of fair value in excess of short of carrying amount.

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- Definition

Reporting unit percentage of fair value increase decrease.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Description of a change in the estimated amount of a goodwill impairment charge, including the facts and circumstances, including a change in assumptions, underlying the change in estimate.

+ References

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- Definition

Description of the underlying cause of impairment of goodwill, such as a significant and more than temporary reduction in sales of a business unit.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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.

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Goodwill - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill impaired facts and circumstances leading to impairment description	Based on continuing developments at the Company’s HCP reporting units, including changes in expectations concerning government reimbursement and the Company’s expected ability to mitigate them, medical cost trends and other market conditions, the Company performed additional impairment assessments on certain at-risk HCP reporting units during the quarter ended March 31, 2016. Based on these first quarter assessments, the Company recognized an additional $77,000 goodwill impairment charge for its HCP Nevada reporting unit during the quarter ended March 31, 2016.
Goodwill impairment charges	$ 77,000	$ 192,834
Goodwill	$ 9,485,628	9,294,479	$ 9,415,295
Goodwill impairment charge description	For example, a sustained, long-term reduction of 3% in operating income for HCP Nevada or HCP Florida could reduce their estimated fair values by up to 2.4% and 1.8%, respectively. Separately, an increase in their respective discount rates of 100 basis points could reduce the estimated fair values of HCP Nevada and HCP Florida by up to 3.6% and 3.7%, respectively.
HealthCare Partners (HCP)
Goodwill [Line Items]
Goodwill impairment charges	$ 77,000	188,769
Goodwill	$ 3,572,480	$ 3,398,264	$ 3,562,534
HealthCare Partners (HCP) \| Long-term Reduction of 3% Percent Operating Income
Goodwill [Line Items]
Decrease in operating income percentage used for assessment of fair values	3.00%
HealthCare Partners (HCP) \| Increase In Discount Rates By 100 Basis Points
Goodwill [Line Items]
Increase in discount rates used for assessment of fair values	1.00%
HealthCare Partners (HCP) \| Nevada
Goodwill [Line Items]
Goodwill impairment charges	$ 77,000
Goodwill	$ 341,668
Percentage of fair value in excess of (short of) carrying amount	(9.90%)
HealthCare Partners (HCP) \| Nevada \| Long-term Reduction of 3% Percent Operating Income
Goodwill [Line Items]
Percentage of Fair value in excess of carrying amount	2.40%
HealthCare Partners (HCP) \| Nevada \| Increase In Discount Rates By 100 Basis Points
Goodwill [Line Items]
Percentage of Fair value in excess of carrying amount	3.60%
HealthCare Partners (HCP) \| Florida
Goodwill [Line Items]
Goodwill	$ 537,813
Percentage of fair value in excess of (short of) carrying amount	4.00%
HealthCare Partners (HCP) \| Florida \| Long-term Reduction of 3% Percent Operating Income
Goodwill [Line Items]
Percentage of Fair value in excess of carrying amount	1.80%
HealthCare Partners (HCP) \| Florida \| Increase In Discount Rates By 100 Basis Points
Goodwill [Line Items]
Percentage of Fair value in excess of carrying amount	3.70%
HealthCare Partners (HCP) \| Colorado
Goodwill [Line Items]
Goodwill	$ 16,897
Percentage of fair value in excess of (short of) carrying amount	15.40%
Kidney Care \| GERMANY
Goodwill [Line Items]
Goodwill	$ 129,242
Percentage of fair value in excess of (short of) carrying amount	13.00%
Kidney Care \| Malaysia
Goodwill [Line Items]
Goodwill	$ 13,998
Percentage of fair value in excess of (short of) carrying amount	6.10%