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Restructuring (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Restructuring Reserve [Roll Forward]        
Restructuring liability   $ 600 $ 1,600 $ 300
Restructuring, acquisition and integration expenses   1,820    
Payments for Restructuring $ 1,400 1,500    
Other Accrued Expenses        
Restructuring Reserve [Roll Forward]        
Restructuring liability $ 200      
UHS Holdco, Inc., (Parent)        
Restructuring Reserve [Roll Forward]        
Restructuring, acquisition and integration expenses   $ 1,820