Background and Basis of Presentation (Details 2) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended
Nov. 30, 2012 Banner Health [Member]	May 31, 2012 Healthcare Partners [Member]	Jun. 30, 2012 Home Health and Hospice [Member] LOUISIANA	Dec. 31, 2011 Home Health certain Utah Michigan Nevada and Brookly NY Branches [Member]
Significant Acquisitions and Disposals [Line Items]
Total consideration from sale of business	$ 3.5	$ 0.3	$ 6.4	$ 1.6

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration