Discontinued Operations and Assets Held For Sale - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013 Agencies	Dec. 31, 2012 Agencies
Home Health [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of care centers included in discontinued operations	32	3
Hospice [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of care centers included in discontinued operations	1