Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Schedule of Gains and Losses on Derivatives (Details)

v3.10.0.1
Derivative Instruments - Schedule of Gains and Losses on Derivatives (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Interest Rate Swap [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized gain (loss) on interest rate hedges $ 1,474 $ (9) $ 7,762 $ (763)