Background and Basis of Presentation Background and Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	0 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 NORTH CAROLINA Appalachian Regional Health Systems [Member]	Aug. 23, 2013 NORTH CAROLINA Wake Forest Baptist Health Care at Home, LLC [Member]	Apr. 30, 2013 INDIANA Hope Hospice Inc [Member]	Jul. 22, 2012 INDIANA Advocate Hospice Llc [Member]	Aug. 31, 2012 WASHINGTON & IDAHO [Domain] Family Home Care Corporation [Member]	Aug. 31, 2012 MISSISSIPPI North Mississippi Hospice [Member]
Significant Acquisitions and Disposals [Line Items]
Business Acquisition, Name of Acquired Entity		Appalachian Regional Health Systems	Wake Forest Baptist Health Care at Home, LLC	Hope Hospice, Inc.	Advocate Hospice	Family Home Care Corporation	North Mississippi Hospice
Business Acquisition, Effective Date of Acquisition		Sep. 30, 2013	Aug. 23, 2013	Apr. 30, 2013	Jul. 22, 2012	Aug. 31, 2012	Aug. 31, 2012
Business Combination, Consideration Transferred	$ 6.1	$ 2.7	$ 2.4	$ 1.0	$ 5.5	$ 12.3	$ 4.7