Basis of Presentation and Significant Accounting Policies (Summary of Major Components of Other Operating Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Other Operating Expenses [Line Items]
Taxes and insurance	$ 33,964	$ 33,055
Repairs and maintenance	9,535	9,637
Utilities	5,302	6,123
Other miscellaneous operating expenses	16,227	20,778
Total other operating expenses	136,789	152,738
Purchased Services [Member]
Other Operating Expenses [Line Items]
Professional fees	37,842	41,080
Medical Specialist Fees [Member]
Other Operating Expenses [Line Items]
Professional fees	26,070	26,948
Community Health Systems, Inc [Member]
Other Operating Expenses [Line Items]
Transition services agreements	$ 7,849	$ 15,117