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Business Combinations - Pro Forma Results of Operation (Details) - USD ($) $ in Millions | 2 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Business Acquisition [Line Items] |  |  |  |  |
Combined entity: Supplemental pro forma, Net Operating Revenues |  | $ 1,075.0 | $ 986.7 | $ 2,141.9 | $ 1,963.1
Combined entity: Supplemental pro forma, Net Income Attributable to Encompass Health |  | $ 93.7 | $ 66.5 | 179.8 | $ 135.7
Camellia Healthcare [Member] | Home Health and Hospice Segment [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Acquired entity only: Actual from acquisition date to June 30, 2018, Net Operating Revenues | $ 13.7 |  |  |  |
Acquired entities only: Actual from acquisition date to June 30, 2018, Net Income Attributable to Encompass Health | $ 0.1 |  |  |  |
Golden Age and MSA [Member] | Home Health and Hospice Segment [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Acquired entity only: Actual from acquisition date to June 30, 2018, Net Operating Revenues |  |  |  | 0.7 |
Acquired entities only: Actual from acquisition date to June 30, 2018, Net Income Attributable to Encompass Health |  |  |  | $ (0.1) |

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