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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.

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-Name Accounting Standards Codification

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Amount of assets acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Section 50

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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Business Combinations - Table 1 (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 1,090.0us-gaap_Goodwill	$ 1,084.0us-gaap_Goodwill
Total assets acquired	7.3
Noncompete Agreement [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	0.3
Trade Name [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	0.1
Useful Lives of Acquired Finite-Lived Intangible Assets [Abstract]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	1 year
License [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	0.9
Useful Lives of Acquired Finite-Lived Intangible Assets [Abstract]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	10 years
Minimum [Member] \| Noncompete Agreement [Member]
Useful Lives of Acquired Finite-Lived Intangible Assets [Abstract]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	2 years
Maximum [Member] \| Noncompete Agreement [Member]
Useful Lives of Acquired Finite-Lived Intangible Assets [Abstract]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	5 years
Integrity Home Health Care [Member]
Business Acquisition [Line Items]
Goodwill	$ 6.0