Derivative Financial Instruments (Location and Effect of the Derivative Instrument on the Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ (14)	$ (3,964)
Interest Rate Swap [Member] | Interest Expense, Net [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	1,791	(4,329)
Hedged Item Debt [Member] | Interest Expense, Net [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ (1,805)	$ 365