Goodwill And Intangible Assets (Summary Of Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	$ 236,995	$ 237,995
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,523,370	1,085,129
Accumulated Amortization	(118,554)	(49,245)
Net	1,404,816	1,035,884
Total intangible assets, gross carrying amount	1,760,365	1,323,124
Total intangible assets, net	1,641,811	1,273,879
Trade name [Member]
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	228,000	228,000
Restrictive covenant arrangements [Member]
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	8,995	9,995
Customer relationships with hospitals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,379,977	971,645
Accumulated Amortization	(74,490)	(22,145)
Net	1,305,487	949,500
Deferred financing cost [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	60,664	59,574
Accumulated Amortization	(13,490)	(5,151)
Net	47,174	54,423
Capitalized software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	71,462	50,387
Accumulated Amortization	(28,125)	(19,197)
Net	43,337	31,190
Agreements, contracts, and other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,267	3,523
Accumulated Amortization	(2,449)	(2,752)
Net	$ 8,818	$ 771