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Borrowings (Tables)
12 Months Ended
Dec. 31, 2011
Borrowings [Abstract]  
Future contractual maturities of borrowed funds
         

Year

  Amount  
    (Dollars in thousands)  

2012

  $ —    

2013

    —    

2014

    —    

2015

    250,000  

2016

    200,000  

Thereafter

    —    
   

 

 

 

Total borrowed funds

  $ 450,000