Hedging Activities - Table (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net	$ 0	$ 272	$ 395
Derivative Instruments Gain Loss Reclassified From Accumulated OCI Into Income Effective Portion Net	0	(392)	(660)
Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net	$ 0	$ 0	$ 0