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Derivatives and Hedging Activity (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Derivatives, Fair Value [Line Items]          
Derivative, Collateral, Obligation to Return Cash $ 0   $ 0   $ 0
Derivatives And Hedging Activity (Textual) [Abstract]          
Cash flow hedge ineffectiveness in earnings materiality 0 3 0 3  
Estimated additional accumulated other comprehensive Income/(Loss) transferred to interest expense $ 2,600   $ 2,600    
Derivative instruments not designated as hedging instruments, gain (loss), net (22) $ 0 (24) $ 0  
Payment required to pay for contract termination 10,700   10,700    
Other Income Expense [Member] | Interest Rate Contracts [Member]          
Derivatives And Hedging Activity (Textual) [Abstract]          
Derivative instruments not designated as hedging instruments, gain (loss), net $ 0 $ 0 $ 0 $ 0