Accumulated Other Comprehensive Loss (Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Reclassification Adjustment Out Of Accumulated Other Comprehensive Loss [Line Items]
Interest expense, net	$ 9,213	$ 7,004	$ 19,827	$ 13,310
Reclassification Out Of Accumulated Other Comprehensive Loss [Member] | Unrealized Loss On Derivative Instruments [Member] | Interest Rate Swaps [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Loss [Line Items]
Interest expense, net			$ 2,851	$ 1,825