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Derivative Activities (Narratives) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) $ 1,798,000 $ 233,000 $ 2,189,000 $ 4,711,000  
Notional Amount Purchased Option 12,000,000   12,000,000   28,000,000
Embedded Derivative, Fair Value of Embedded Derivative Liability 5,600,000   5,600,000   15,700,000
Notional Amount Embedded Option 11,600,000   11,600,000   26,900,000
Interest Rate Cap [Member]
         
Derivative Instruments, Gain (Loss) [Line Items]          
Derivative, Notional Amount 110,000,000   110,000,000   94,000,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) $ 8,700,000