Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 PeriodicRate Group time
Summary Of Significant Accounting Policies [Line Items]
License leasing arrangements	100.00%
Number of Medicare home health resource groups	153
Number of days from date RAP paid to submit final Medicare bill	60 days
Low utilization adjustment visits	5
Selected hospice, periodic rate used to calculate revenue	1
Number of hospice, periodic rates used to calculate revenue	4
Minimum percentage of Medicare reimbursement from inpatient care services that subjects individual programs to inpatient cap	20.00%
Determination period for hospice Medicare inpatient reimbursement cap	12 months
Hospice cap liability	$ 1.1
Medicare credit risk for accounts receivable	58.00%
Reimbursement for initial episode of care	60.00%
Number of days from start of episode to submit final Medicare bill	120 days
Reimbursement for subsequent episodes of care	50.00%
Minimum
Summary Of Significant Accounting Policies [Line Items]
Equity joint ventures, ownership	51.00%
Maximum
Summary Of Significant Accounting Policies [Line Items]
Equity joint ventures, ownership	91.00%
Federal Cap Year Ended October 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Hospice cap liability for respective periods	0.6
Federal Cap Year Ended October 31, 2013
Summary Of Significant Accounting Policies [Line Items]
Hospice cap liability for respective periods	$ 0.5