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Derivative Financial Instruments - Summary of the Effect of the Company's Derivative Financial Instruments on its Accompanying Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]        
Amount of gain recognized in AOCI on derivatives (effective portion) $ 89 $ 76 $ 176 $ 131
Amount of gain reclassified from AOCI into interest expense (effective portion) $ 89 $ 76 $ 176 $ 131