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Derivative Activities (Narratives) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 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) $ 14,000 $ 3,016,000 $ 391,000 $ 4,477,000  
Notional Amount Purchased Option 14,000,000   14,000,000   28,000,000
Embedded Derivative, Fair Value of Embedded Derivative Liability 6,400,000   6,400,000   15,700,000
Notional Amount Embedded Option 13,400,000   13,400,000   26,900,000
Interest Rate Cap [Member]
          
Derivative Instruments, Gain (Loss) [Line Items]          
Derivative, Notional Amount 110,000,000   110,000,000   110,000,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) $ 10,500,000