v3.26.1
Relationship with Select (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 25, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Concentra Group Holdings Parent | Select Medical Corporation          
Related Party Transaction [Line Items]          
Select special stock distribution (in shares) 104,093,503        
Nonrelated Party          
Related Party Transaction [Line Items]          
Services agreement fee   $ 1.0   $ 2.7  
Related Party          
Related Party Transaction [Line Items]          
Services agreement fee     $ 3.5   $ 7.2