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Business Combinations - Textual (Details) $ in Millions		9 Months Ended
	Sep. 01, 2017	Sep. 30, 2017 USD ($)	Aug. 01, 2017 location	Jul. 01, 2017 location	May 01, 2017 location	Apr. 08, 2017 bed	Apr. 01, 2017 bed	Feb. 01, 2017 location
Inpatient Rehabilitation Segment [Member] | Memorial Hospital at Gulfport [Member]
Business Acquisition [Line Items]
Interest acquired in business acquisition (percent)							80.00%
Number of beds in facility acquired | bed							33
Inpatient Rehabilitation Segment [Member] | Mount Carmel West [Member]
Business Acquisition [Line Items]
Interest acquired in business acquisition (percent)						80.00%
Number of beds in facility acquired | bed						60
Inpatient Rehabilitation Segment [Member] | Jackson-Madison County General Hospital [Member]
Business Acquisition [Line Items]
Interest acquired in business acquisition (percent)				50.00%
Inpatient Rehabilitation Segment [Member] | Heritage Valley Beaver Hospital [Member]
Business Acquisition [Line Items]
Interest acquired in business acquisition (percent)	75.00%
Interest exchanged in business acquisition (percent)	25.00%
Inpatient Rehabilitation Segment [Member] | Gulfport, Mount Carmel, Jackson and Heritage Valley [Member]
Business Acquisition [Line Items]
Goodwill deductible for federal income tax purposes | $		$ 0.0
Inpatient Rehabilitation Segment [Member] | Gulfport, Mount Carmel, Jackson and Heritage Valley [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		20 years
Inpatient Rehabilitation Segment [Member] | Gulfport, Mount Carmel, Jackson and Heritage Valley [Member] | Certificate of Need [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		20 years
Home Health and Hospice Segment [Member] | Celtic, Community, Bio Care, and VNA [Member]
Business Acquisition [Line Items]
Goodwill deductible for federal income tax purposes | $		$ 20.5
Home Health and Hospice Segment [Member] | Celtic, Community, Bio Care, and VNA [Member] | Noncompete Agreements [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		5 years
Home Health and Hospice Segment [Member] | Celtic, Community, Bio Care, and VNA [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		1 year
Home Health and Hospice Segment [Member] | Celtic, Community, Bio Care, and VNA [Member] | Certificate of Need [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		10 years
Home Health and Hospice Segment [Member] | Celtic, Community, Bio Care, and VNA [Member] | License [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		10 years
Home Health and Hospice Segment [Member] | Celtic Healthcare of Maryland, Inc. (Celtic) [Member]
Business Acquisition [Line Items]
Number of Locations of an Acquired Entity								2
Home health [Member] | Home Health and Hospice Segment [Member] | Community Health Services, Inc. (Community) [Member]
Business Acquisition [Line Items]
Number of Locations of an Acquired Entity								2
Home health [Member] | Home Health and Hospice Segment [Member] | Bio Care Home Health Services and Kinsman Enterprises [Member]
Business Acquisition [Line Items]
Number of Locations of an Acquired Entity					2
Home health [Member] | Home Health and Hospice Segment [Member] | VNA Healthtrends - IL, IN, AZ [Member]
Business Acquisition [Line Items]
Number of Locations of an Acquired Entity				4
Home health [Member] | Home Health and Hospice Segment [Member] | VNA Healthtrends - OH and IL [Member]
Business Acquisition [Line Items]
Number of Locations of an Acquired Entity			2
Minimum [Member] | Inpatient Rehabilitation Segment [Member] | Gulfport, Mount Carmel, Jackson and Heritage Valley [Member] | Noncompete Agreements [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		2 years
Maximum [Member] | Inpatient Rehabilitation Segment [Member] | Gulfport, Mount Carmel, Jackson and Heritage Valley [Member] | Noncompete Agreements [Member]
Business Acquisition [Line Items]
Acquired intangible asset useful lives		3 years

X

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Number of hospital beds acquired as part of a facility acquisition.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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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Dividend or interest rate associated with the financial or equity instrument issued as noncash or part noncash consideration for a business or asset acquired. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments.

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