Discontinued Operations and Assets Held For Sale - Additional Information (Detail) - Agencies	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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