Summary of Business Organization, Operations and Significant Accounting Policies (Reserve for Insurance Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General liability insurance maximum recoverage per occurrence	$ 80.0
General liability insurance maximum coverage in aggregate	100.0
GEO care insurance maximum recoverable per occurrence	35.0
Deductible amount for general insurance liability and hospital professional insurance liability	3.0
Deductible amount for worker's compensation insurance liability	2.0
Deductible amount for automobile insurance liability	1.0
Undiscounted reserves for workers compensation and general liability claims	$ 51.6	$ 52.8