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Derivative Financial Instruments and Hedging Activities - Schedule of Changes in AOCL (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ 1,763  
Ending balance 1,500  
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance 1,763 $ 8,413
Losses on terminated hedging relationships amortized to earnings (263) (6,916)
Decrease in deferred taxes on accumulated losses on cash flow hedges 0 389
Decrease in accumulated losses on cash flow hedges, net of taxes (263) (6,527)
Ending balance $ 1,500 $ 1,886