Other Expense/(Income), net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Expense/(Income), net [Abstract]
Currency transactions	$ 1,894	$ (3,133)	$ 1,903	$ 699
Bank fees and amortization of debt issuance costs	377	533	998	1,209
Letter of credit fees		351		770
Other	(60)	(306)	44	(685)
Total	$ 2,211	$ (2,555)	$ 2,945	$ 1,993