Derivative Financial Instruments (Schedule of Other Derivatives Not Designated as Hedging Instruments) (Details) (Interest Rate Swap [Member], Interest Expense [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (847)	$ 0	$ 663	$ 0