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) - Interest rate swap instruments - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Derivatives Designated as Hedging Instruments | Other assets    
Derivatives, Fair Value [Line Items]    
Asset derivatives $ 1,041 $ 233
Derivatives Designated as Hedging Instruments | Other liabilities    
Derivatives, Fair Value [Line Items]    
Liability derivatives 2,440 3,529
Not Designated as Hedging Instrument | Other assets    
Derivatives, Fair Value [Line Items]    
Asset derivatives $ 12 $ 0