Other Income, net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Income and Expenses [Abstract]
Currency transaction (gains)/losses	$ (1,571)	$ 1,878	$ (2,049)	$ (549)
Bank fees and amortization of debt issuance costs	394	234	546	545
Gain on sale of investment				(872)
Other	(840)	708	(842)	411
Total	$ (2,017)	$ 2,820	$ (2,345)	$ (465)