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Segment Reporting - Textuals (Details)
3 Months Ended
Mar. 31, 2020
hospital
location
segment
state
Segment Reporting Information [Line Items]  
Number of operating segments | segment 2
Number of states in which entity operates | state 37
Inpatient Rehabilitation  
Segment Reporting Information [Line Items]  
Number of states in which entity operates | state 33
Number of inpatient rehabilitation hospitals operated 134
Number of solely owned inpatient rehabilitation hospitals 87
Number of jointly owned inpatient rehabilitation hospitals 47
Number of inpatient rehabilitation units under management contracts 3
Home Health and Hospice  
Segment Reporting Information [Line Items]  
Number of states in which entity operates | state 31
Number of home health locations | location 245
Number of hospice locations | location 83
Number of hospitals or agencies operated as a joint venture 1
Number of solely owned hospital based home health and hospice locations | location 320
Number of jointly owned hospital based home health and hospice locations | location 8
Minimum | Inpatient Rehabilitation  
Segment Reporting Information [Line Items]  
Joint venture ownership percentage 50.00%
Minimum | Home Health and Hospice  
Segment Reporting Information [Line Items]  
Joint venture ownership percentage 50.00%
Maximum | Inpatient Rehabilitation  
Segment Reporting Information [Line Items]  
Joint venture ownership percentage 97.50%
Maximum | Home Health and Hospice  
Segment Reporting Information [Line Items]  
Joint venture ownership percentage 81.00%