Commitments And Contingencies (Details) (USD $)	1 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011	Mar. 09, 2011 Home Health [Member]	Jun. 06, 2011 Hospice [Member]	Jul. 30, 2010 Hospice [Member]
Number of claims submitted by subsidiary			137		30
Recovery amount of the overpayment made to the subsidiary			$ 5,600,000	$ 5,500,000
Health insurance retention limit		750,000
Workers' compensation insurance retention limit		350,000
Professional liability insurance retention limit		250,000
Purchase of limited partnership interest in a private investment fund	2,000,000
Additional capital contribution to private investment fund	$ 18,000,000	$ 18,000,000