Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities- Fair Value of Derivative Instruments on the Balance Sheet (Details)

v3.8.0.1
Derivative Instruments and Hedging Activities- Fair Value of Derivative Instruments on the Balance Sheet (Details) - Derivatives Designated as Hedging Instruments - Interest rate swap instruments - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Other assets    
Derivatives, Fair Value [Line Items]    
Derivative assets, fair value $ 31 $ 0
Other liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, fair value $ 3,885 $ 3,843