Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Derivative Instruments - Schedule of Gains and Losses on Derivatives (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Interest Rate Swap [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Unrealized gain on interest rate hedges $ 4,065 $ 735