Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accrued Liabilities [Abstract]
Accrued salaries and benefits	$ 6,875	$ 6,746
Accrued incentive compensation	8,302	5,405
Accrued value added tax	993	398
Restructuring Reserve	6,539	1,368
Miscellaneous acquisition-related accrual	1,604	0
Outside sales commissions	1,023	1,146
Other Accrued Liabilities, Current	3,612	2,287
Accrued liabilities	$ 28,948	$ 17,350