Debt (Schedule of Interest Rate Derivatives) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Interest Rate Swap, Date Entered, June 2013 [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	2.11%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 80,000
Interest Rate Derivative Liabilities, at Fair Value	$ 0
Interest Rate Swap, Date Entered, March 2014 [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	2.16%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 130,000
Interest Rate Derivative Liabilities, at Fair Value	$ 0
Interest Rate Swap, Date Entered, March 2019 - 2.22%
Derivative [Line Items]
Derivative, Fixed Interest Rate	2.22%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 100,000
Interest Rate Derivative Liabilities, at Fair Value	$ (3,143)
Interest Rate Swap, Date Entered, March 2019 - 2.21%
Derivative [Line Items]
Derivative, Fixed Interest Rate	2.21%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 100,000
Interest Rate Derivative Liabilities, at Fair Value	$ (3,163)
Interest Rate Swap, Date Entered, June 2019 - 1.61%
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.61%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 150,000
Interest Rate Derivative Liabilities, at Fair Value	$ (3,316)
Interest Rate Swap, Date Entered, June 2019 - 1.63%
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.63%
Debt Instrument, Description of Variable Rate Basis	1-month LIBOR
Derivative, Notional Amount	$ 50,000
Interest Rate Derivative Liabilities, at Fair Value	$ (1,115)