Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2012 D	Mar. 31, 2011	Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]
Episode of care as episodic-based revenue, days	60
Percentage of total reimbursement of outlier payment	10.00%
Low utilization payment adjustment, maximum number of visits	5
First threshold of therapy services required, visits	6
Second threshold of services required, visits	14
Third threshold of therapy services required, visits	20
CMS face to face requirement prior to start of care time frame, days	90
CMS face to face requirement after start of care time frame, days	30
CMS therapy assessment requirement interval minimum, days	30
CMS therapy assessment requirement visits threshold one	13
CMS therapy assessment requirement visits threshold two	19
Episodes of progress that begin during reporting period, days	60
Hospice Medicare revenue rate accounted for routine care	98.00%	98.00%
CMS hospice face-to-face requirement prior to third benefit period, days	30
Days in hospice recertification third benefit period	180
Portion of accounts receivable derived from Medicare	64.00%		73.00%
Historical collection rate from Medicare	99.00%
Revenue adjustment to Medicare revenue	$ 2.7	$ 2.3
Minimum days for accounts receivable outstanding to be fully reserved	365
Rate of request for anticipated payment submitted for the initial episode of care	60.00%
Rate of request for anticipated payment submitted for subsequent episodes of care	50.00%
Maximum days to submit final bill from the start of episode	120
Maximum days to submit final bill from the date the request for anticipated payment was paid	60
Percentage of patient receivables outstanding	10.00%
Cap Year 2010 - 2012 [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated amounts due back to Medicare	$ 3.8		3.1