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Commitments And Contingencies (Tables)
12 Months Ended
Dec. 31, 2012
Commitments And Contingencies [Abstract]  
Summary Of Future Minimum Lease Commitments
     
(dollars in thousands)    
2013 $ 31,854
2014   30,397
2015   29,315
2016   28,796
2017   28,504
Thereafter   243,972
Total $ 392,838