Acquisitions and Disposals - Schedule of Acquired Entities (Detail)	3 Months Ended
	Mar. 31, 2014
EAMC - Lanier Home Health [Member]
Business Acquisition [Line Items]
Ownership Percentage	75.00%
State of Operations	Alabama
Acquisition Date	Feb. 01, 2014
Lifeline Home Health [Member]
Business Acquisition [Line Items]
Ownership Percentage	100.00%
State of Operations	Kentucky
Acquisition Date	Feb. 01, 2014
Louisiana Hospice and Palliative Care of New Orleans [Member]
Business Acquisition [Line Items]
Ownership Percentage	100.00%
State of Operations	Louisiana
Acquisition Date	Mar. 01, 2014