Derivative Instruments (Derivative Instruments, Effect On Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in OCI	$ 2,289
Amount of Gain (Loss) Reclassified from AOCI to Income	1,295
Loss Recognized in Income from Ineffective portion	486
Interest Rate Swaps [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in OCI	2,461
Amount of Gain (Loss) Reclassified from AOCI to Income	1,309
Loss Recognized in Income from Ineffective portion	486
Foreign Exchange Contracts [Member] | Other Revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in OCI	(172)
Amount of Gain (Loss) Reclassified from AOCI to Income	$ (14)