This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

No definition available.

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Net of Cash Acquired

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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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No definition available.

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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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

Amount of liabilities assumed at the acquisition date.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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- Definition

The fair value of assets acquired in noncash investing or financing activities.

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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.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Business Combinations - Net Cash Paid for Acquisition (Details) - USD ($) $ in Millions		1 Months Ended			12 Months Ended
	Nov. 30, 2015	Nov. 30, 2015	Oct. 31, 2015	Apr. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Acquisitions					$ 45.4	$ 51.4	$ 806.1
Goodwill					1,972.6	1,927.2	1,890.1	$ 1,084.0
Net cash paid for acquisition					38.8	48.1	985.1
Home Health and Hospice Segment [Member]
Business Acquisition [Line Items]
Acquisitions					21.4	42.5	164.5
Goodwill					806.6	785.2	757.0	592.5
Home Health and Hospice Segment [Member] \| Celtic, Community, Bio Care, VNA, Ware, and Pickens County [Member]
Business Acquisition [Line Items]
Fair Value of Assets Acquired					6.8
Acquisitions					21.4
Goodwill					21.4
Fair value of liabilities assumed					(0.3)
Net cash paid for acquisition					27.9
Noncash or Part Noncash Acquisition, Value of Liabilities Assumed					(0.3)
Home Health and Hospice Segment [Member] \| Series of individually immaterial business acquisitions [Member]
Business Acquisition [Line Items]
Fair value of assets acquired					7.1		10.4
Goodwill					41.4	41.4	20.3
Fair value of liabilities assumed					0.4	0.4	0.2
Net cash paid for acquisition					48.1		30.5
Home Health and Hospice Segment [Member] \| CareSouth [Member]
Business Acquisition [Line Items]
Fair value of assets acquired	$ 48.0	$ 48.0
Goodwill	143.3	143.3
Fair value of liabilities assumed	(17.7)	(17.7)
Noncontrolling interests	(4.3)	(4.3)
Net cash paid for acquisition	$ 169.3
Cash acquired in acquisition		$ 0.4
Inpatient Rehabilitation Segment [Member]
Business Acquisition [Line Items]
Acquisitions					24.0	8.9	641.6
Goodwill					1,166.0	1,142.0	1,133.1	$ 491.5
Inpatient Rehabilitation Segment [Member] \| Gulfport, Mount Carmel, Jackson and Heritage Valley [Member]
Business Acquisition [Line Items]
Fair Value of Assets Acquired					11.0
Acquisitions					24.0
Business Combination, Acquisition Of Less Than 100 Percent Noncontrolling Interest, Fair Value Of Equity Interest					(24.1)
Inpatient Rehabilitation Segment [Member] \| Hot Springs, Bryan and Broken Arrow [Member]
Business Acquisition [Line Items]
Fair value of assets acquired						6.7
Goodwill						9.4
Fair value of liabilities assumed						(16.1)
Net cash paid for acquisition						$ 0.0
Inpatient Rehabilitation Segment [Member] \| Series of individually immaterial business acquisitions [Member]
Business Acquisition [Line Items]
Acquisitions				$ 0.7
Fair value of assets acquired							62.8
Goodwill							0.7
Fair value of liabilities assumed							2.7
Noncontrolling interests							4.2
Net cash paid for acquisition							$ 56.6
Inpatient Rehabilitation Segment [Member] \| Reliant [Member]
Business Acquisition [Line Items]
Fair value of assets acquired			$ 316.6
Goodwill			642.6
Fair value of liabilities assumed			(230.0)
Noncontrolling interests			(0.4)
Net cash paid for acquisition			728.8
Cash acquired in acquisition			$ 42.6
Corporate Joint Venture [Member] \| Inpatient Rehabilitation Segment [Member] \| Gulfport, Mount Carmel, Jackson and Heritage Valley [Member]
Business Acquisition [Line Items]
Goodwill					24.0
Net cash paid for acquisition					$ 10.9