Other Expense/(Income), net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income and Expenses [Abstract]
Currency transactions	$ (3,532)	$ 1,496	$ (6,379)
Bank fees and amortization of debt issuance costs	759	916	1,174
Loss due to theft of cash	2,506
Gain on sale of investment		(872)
Gain on insurance recovery			(1,126)
Other	313	893	(522)
Total	$ 46	$ 2,433	$ (6,853)