Goodwill And Intangible Assets (Summary Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	$ 237,995	$ 9,825
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,085,129	40,298
Accumulated Amortization	(49,245)	(22,256)
Net	1,035,884us-gaap_FiniteLivedIntangibleAssetsNet	18,042us-gaap_FiniteLivedIntangibleAssetsNet
Total intangible assets, gross carrying amount	1,323,124	50,123
Accumulated Amortization	(49,245)	(22,256)
Total intangible assets, net	1,273,879	27,867
Customer relationships with hospitals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	971,645	0
Accumulated Amortization	(22,145)	0
Net	949,500	0
Accumulated Amortization	(22,145)	0
Deferred financing cost [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	59,574	15,814
Accumulated Amortization	(5,151)	(4,953)
Net	54,423	10,861
Accumulated Amortization	(5,151)	(4,953)
Capitalized software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	50,387	21,036
Accumulated Amortization	(19,197)	(14,831)
Net	31,190	6,205
Accumulated Amortization	(19,197)	(14,831)
Agreements, contracts, and other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,523	3,448
Accumulated Amortization	(2,752)	(2,472)
Net	771	976
Accumulated Amortization	(2,752)	(2,472)
Trade name [Member]
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	228,000	0
Restrictive covenant arrangements [Member]
Indefinite-lived Intangible Assets [Line Items]
Non-amortizable intangible assets	$ 9,995	$ 9,825

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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