Restructuring - Summary of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period	$ 585	$ 603
Provisions	273	679
Utilizations	(195)	(748)
Balance - End of the period	663	534
Employee Costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period	542	531
Provisions	208	36
Utilizations	(155)	(105)
Balance - End of the period	595	462
Facility Exit and Other Contractual Costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period	43	72
Provisions	65	643
Utilizations	(40)	(643)
Balance - End of the period	$ 68	$ 72