Derivative Financial Instruments (Schedule of Gains and Losses Related to Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Gain or (Loss) on Derivatives Recognized in OCI	$ 615	$ (187)	$ (1,041)	$ (2,076)
Cash Flow Hedging | Interest expense
Derivative [Line Items]
Gain or (Loss) Reclassified from Accumulated OCI into Earnings	606	78	1,360	113
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Gain or (Loss) on Derivatives Recognized in OCI	$ 9	$ (265)	$ (2,401)	$ (2,190)