Legal And Regulatory Matters (Details) $ in Millions	1 Months Ended	3 Months Ended
	Nov. 30, 2013 item	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Number of shareholder derivative lawsuits filed | item	2
Number of days given to file amended complaint		14 days
U.S. v. VITAS [Member]
Loss Contingencies [Line Items]
Net costs incurred | $		$ 2.3	$ 1.3