Revenue Recognition (Schedule Of Cost Of Charity Care) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue Recognition [Abstract]
Charity care cost	$ 1,761	$ 1,715	$ 3,698	$ 3,521

The amount of charity care provided during the period based on the provider's direct and indirect costs of providing charity care services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 605
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=68052803&loc=d3e8255-115641

Name:	us-gaap_CharityCareDirectAndIndirectCostBasisAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration