Derivative Financial Instruments Effectiveness Testing (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ 0
Interest rate swap [Member]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	(4,100,000)
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	$ (1,600,000)