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Transactions With Related Parties (Schedule Of Transactions With Related Parties) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Sandhill [Member]
       
Related Party Transaction [Line Items]        
Related party transaction, revenues $ 713 $ 808 $ 1,368 $ 1,481
Davision [Member]
       
Related Party Transaction [Line Items]        
Related party transaction, revenues 0 289 0 644
Chief Executive Officer [Member]
       
Related Party Transaction [Line Items]        
Related party transaction, expenses $ 150 $ 150 $ 300 $ 300
Sandhill Group Llc [Member]
       
Related Party Transaction [Line Items]        
Percentage of interest held 50.00%   50.00%