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Basis of Presentation - Additional Information (Details)
Mar. 31, 2023
hospital
state
Class of Stock [Line Items]  
Number of states in which entity operates | state 37
Number of inpatient rehabilitation hospitals operated 156
Number of solely owned inpatient rehabilitation hospitals 95
Number of jointly owned inpatient rehabilitation hospitals 61
Minimum  
Class of Stock [Line Items]  
Joint venture ownership percentage 50.00%
Maximum  
Class of Stock [Line Items]  
Joint venture ownership percentage 97.50%