Derivative and Hedging Activities - Summary of Amounts Recorded in AOCL (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
Derivative
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, number of instruments held | Derivative     0
General and administrative expense      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Loss Recognized in Operations on Derivative (Ineffective Portion) $ 0 $ (1,706)  
Designated as Hedging Instrument | Interest expense      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Loss Reclassified from AOCL into Operations (Effective Portion) 0 (459)  
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedging      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Loss Recognized in AOCL on Derivative (Effective Portion) 28 (1,145)  
Not Designated as Hedging Instrument | General and administrative expense      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Loss Recognized in Operations on Derivative (Ineffective Portion) $ 0 $ (18)