Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative [Line Items]
Interest rate cash flow hedge gain (loss) to be reclassified to interest expense during the next 12 months	$ (200)		$ (200)
Interest Rate Swap [Member]
Derivative [Line Items]
Amount of gain (loss) recognized in OCI on derivative (effective portion)	0	$ (961)	0	$ (1,684)
Interest Expense [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Amount of gain (loss) reclassified from accumulated OCI into Interest Expense (effective portion)	(42)	(31)	(84)	(31)
Amount of gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	$ 0	$ 0	$ 0	$ 0