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Commitments And Contingencies (Narrative) (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2011
Minimum [Member]
Dec. 31, 2011
Maximum [Member]
Dec. 31, 2011
Favorable [Member]
Dec. 31, 2011
Unfavorable [Member]
Mar. 09, 2011
Home Health [Member]
Jan. 31, 2010
Home Health [Member]
Jun. 06, 2011
Hospice [Member]
Jul. 31, 2010
Hospice [Member]
Dec. 31, 2011
MAXIMUS Federal Services [Member]
Unfavorable [Member]
Commitments And Contingencies [Line Items]                        
Number of claims submitted by subsidiary           4 12 114 137 16 30  
Recovery amount of the overpayment made to the subsidiary $ 6,300,000             $ 5,600,000   $ 5,500,000    
Operating leases agreement expiration year       2012 2017              
Operating lease term, years      
three
seven
             
Number of redetermination decisions             110         85
Future rental commitments amount for discontinued operation locations 3,800,000                      
Rent expense for non-cancelable operating leases 32,700,000 35,400,000 31,900,000                  
Health insurance retention limit 750,000                      
Workers' compensation insurance retention limit 350,000                      
Professional liability insurance retention limit $ 250,000