Commitments and Contingencies Litigation (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 facilities
Litigation [Line Items]
Facilities under Medicare Probe Reviews		11
Facilities under Medicare Probe Reviews Closed		5
Facilities under Medicare Probe Reviews in Process		6
General Liability [Member]
Litigation [Line Items]
Litigation Settlement, Amount | $	$ 1,586