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Segment Reporting - Table 5 (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	$ 1,046.0	$ 957.1
Inpatient Rehabilitation Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	840.3	777.8
Inpatient Rehabilitation Segment [Member] | Inpatient [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	817.1	752.7
Inpatient Rehabilitation Segment [Member] | Outpatient and other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	23.2	25.1
Home Health and Hospice Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	205.7	179.3
Home Health and Hospice Segment [Member] | Home health [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	185.2	163.7
Home Health and Hospice Segment [Member] | Hospice [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net operating revenues	$ 20.5	$ 15.6

X

- Definition

Amount of revenues recognized by the entity from providing services to in-patients, outpatients, residents in facilities owned or operated by the entity, from insurance premiums, or from goods provided or services performed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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X

- 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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X

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