Other Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Foreign currency gain (loss)	$ (123)	$ 313	$ 547	$ (1,761)
Change in fair value of contingent consideration			(2,495)	(900)
Interest income	41	15	73	42
Other expense, net	(212)	(57)	(224)	(2,619)
Other Nonoperating Income (Expense)
Business Acquisition [Line Items]
Change in fair value of contingent consideration	$ (130)	$ (385)	$ (844)	$ (900)