Concentration Of Risk (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Y D	Jun. 30, 2011
Concentration Of Risk [Abstract]
Period of renewal of pharmacy services agreements (in years)			1
Number of days prior written notice to cancel agreements			90
VITAS made purchases from OCR	$ 10.2	$ 9.8	$ 20.3	$ 19.1
Percentage of concentration risk services represent from vendor			90.00%	90.00%