Summary of Significant Accounting Policies Summary of Significant Accounting Policies Table 3 (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Concentration of Net Operating Revenues by Payor [Line Items]
Medicare	74.90%	74.10%	74.50%
Managed care and other discount plans, including Medicare Advantage	17.70%	18.60%	18.50%
Medicaid	3.00%	1.80%	1.20%
Other third-party payors	1.70%	1.80%	1.80%
Workers' compensation	0.90%	1.20%	1.20%
Patients	0.60%	1.00%	1.10%
Total	100.00%	100.00%	100.00%
Home Health and Hospice [Member]
Concentration of Net Operating Revenues by Payor [Line Items]
Medicare	83.70%	96.90%	95.80%
Managed care and other discount plans, including Medicare Advantage	10.70%	1.80%	2.50%
Medicaid	5.50%	0.00%	0.00%
Other third-party payors	0.00%	1.00%	1.40%
Workers' compensation	0.00%	0.30%	0.30%
Patients	0.10%	0.00%	0.00%
Total	100.00%	100.00%	100.00%