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Acquisitions Acquisitions by date (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition One [Member]
WASHINGTON
Home Health Operation [Member]
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition Two [Member]
Arizona and California [Member]
Hospice Operation [Member]
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition Three [Member]
TEXAS
Home Health Operation [Member]
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition Three [Member]
TEXAS
Skilled nursing facility
Beds
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition Four [Member]
WASHINGTON
Home health and hospice operation
Mar. 31, 2013
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition Five [Member]
TEXAS
Skilled nursing facility
May 01, 2013
Subsequent Event [Member]
Beds
Mar. 31, 2013
Subsequent Event [Member]
Beds
Business Acquisition [Line Items]                    
Purchase price $ 10,646   $ 2,801         $ 4,508 $ 14,250 $ 7,100
Goodwill 1,966 0 1,966              
Acquired indefinite-lived intangible assets     815              
Acquired Indefinite-lived intangible assets, Home Health Medicare License $ 4,109     $ 1,825 $ 375   $ 1,137      
Operational Assisted Living Units                 90  
Operational Skilled Nursing Beds           150     180 337