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Goodwill And Intangible Assets (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Indicators of impairment         
Amortization expense of intangible assets $ 1,200 $ 1,300 $ 2,521 $ 2,377
Customer Relationships [Member]
       
Weighted-average remaining lives of intangible assets     0 years  
Trade Name [Member]
       
Weighted-average remaining lives of intangible assets     0 years