Goodwill And Other Intangible Assets (Schedule Of Carrying Values Of Indefinite Lived Intangible Assets)(Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Acquired Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 11,300	$ 4,220
Procurement Contracts And Agreements [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite lived intangible assets	2,013	2,013
Trademarks [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite lived intangible assets	858	847
Other [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite lived intangible assets	$ 250	$ 250