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Derivative Instruments and Hedging Activity (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net $ 2,618 $ (1,093)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ (2,493) $ (2,796)