Legal And Regulatory Matters (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)
Loss Contingencies [Line Items]
Number of shareholder derivative lawsuits filed | item			2
Number of days given to file amended complaint			14 days
Filling opportunity period			30 days
Extension period			14 days
U.S. v. VITAS [Member]
Loss Contingencies [Line Items]
Life expectancy period			6 months
Net costs incurred | $	$ 1.2	$ 1.4	$ 3.5	$ 2.7