Derivative Financial Instruments (Schedule of Gains and Losses Related to Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative [Line Items]
Gain or (Loss) on Derivatives Recognized in OCI	$ 341	$ (1,625)	$ (1,656)	$ (2,263)
Cash Flow Hedging | Interest expense
Derivative [Line Items]
Gain or (Loss) Reclassified from Accumulated OCI into Earnings	517	23	754	35
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Gain or (Loss) on Derivatives Recognized in OCI	$ (176)	$ (1,274)	$ (2,410)	$ (1,925)