Derivative Financial Instruments - Net Gains (Losses) Recorded in Accumulated Other Comprehensive Income (Loss) (Details) - Interest rate contract - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative cash pledged	$ 3,800	$ 3,800	$ 300
Cash Flow Hedging
Derivative [Line Items]
Amount of (gain) loss recognized in OCI	(10)	(2,247)
Amount of (gain) loss reclassified from OCI to interest expense	$ (139)	$ (150)