Goodwill And Other Intangible Assets, Net (Details) (USD $)	6 Months Ended			6 Months Ended
	Jun. 30, 2011 years	Jun. 30, 2011 Home Health [Member]	Dec. 31, 2010 Home Health [Member]	Jun. 30, 2011 Hospice [Member]	Jun. 30, 2011 Certificates Of Need And Licenses [Member]	Jun. 30, 2011 Acquired Names Of Business [Member]		Jun. 30, 2011 Non-Compete Agreements & Reacquired Franchise Rights [Member]
Goodwill Balance at December 31, 2010	$ 791,412,000	$ 723,300,000	$ 723,300,000	$ 68,100,000
Additions	110,200,000			110,200,000
Goodwill Balances at June 30, 2011	901,611,000	723,300,000	723,300,000	178,300,000
Other Intangible Assets Balance at December 31, 2010	53,393,000				41,700,000	4,700,000	[1]	7,000,000	[2]
Other Intangible Assets, Additions	10,900,000				2,500,000	8,100,000	[1]	300,000	[2]
Amortization	(2,000,000)					(100,000)	[1]	(1,900,000)	[2]
Other Intangible Assets Balances at June 30, 2011	62,331,000				44,200,000	12,700,000	[1]	5,400,000	[2]
Unamortized acquired names	12,500,000
Amortized acquired names	$ 200,000
Acquired names weighted-average amortization period, years	2.3
Non-compete weighted-average amortization period, years	2.3
Reacquired franchise rights weighted-average amortization period, years	2.0

[1] Acquired Names of Business includes $12.5 million of unamortized acquired names and $0.2 million of amortized acquired names which have a weighted-average amortization period of 2.3 years.

[2] The weighted-average amortization period of our non-compete agreements and reacquired franchise rights is 2.3 and 2.0 years, respectively.