Defined Benefit Pension Plans Schedule of Amounts Recognized in the Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Amounts Recognized in the Consolidated Balance Sheets [Line Items]
Plan Assets in Other Long Term Assets	$ (1,426)	$ (227)
Current Portion of Pension Plan Liability in Wages and Benefits Payable	3,721	2,899
Long-term portion of pension plan liability	88,687	90,533
Net Penison Plan Benefit Liability	$ (90,982)	$ (93,205)