Background and Basis of Presentation (Details 3) (Discontinued Operations [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Oct. 14, 2011 Homemaker Services Agency [Member]	Sep. 10, 2011 Rehab Without Walls [Member]
Significant Acquisitions and Disposals [Line Items]
Total consideration from sale of business	$ 2.4	$ 9.8

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.

Name:	us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration