Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Customer Relationships [Member]	Dec. 31, 2012 Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 600,000	$ 800,000	$ 1,200,000	$ 1,600,000
Gross Carrying Amount					23,088,000	23,088,000
Accumulated Amortization					$ 13,270,000	$ 12,091,000