Other Expense/(Income), net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Expense/(Income), net [Abstract]
Currency transactions	$ 5,227	$ 5,708	$ (84)
Bank fees and amortization of debt issuance costs	1,542	2,385	1,837
Letter of credit fees		963	1,479
Other	487	(1,427)	(593)
Total	$ 7,256	$ 7,629	$ 2,639