Derivative Financial Instruments - Effect of Derivative Financial Instruments on Other Comprehensive Income (Details) - Designated as Hedging Instrument - Cash Flow Hedging - Interest Rate Products - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	$ (178)		$ (1,270)
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)		$ 210		$ 1,009