Interest Rate Derivatives and Hedging Activities (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details) - Cash Flow Hedging - Interest rate swaps - Designated as Hedging Instrument - Derivatives at Fair Value - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	$ 10	$ 205
Derivative liabilities, at fair value	$ (1,751)	$ (1,276)

Interest Rate Derivatives and Hedging Activities (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details) - Cash Flow Hedging - Interest rate swaps - Designated as Hedging Instrument - Derivatives at Fair Value - USD ($)
$ in Thousands

Jun. 30, 2015

Dec. 31, 2014

Derivatives, Fair Value [Line Items]

Derivative assets, at fair value

$ 10

$ 205

Derivative liabilities, at fair value

$ (1,751)

$ (1,276)