Restructuring - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred			$ 258
Restructuring reserve recorded in accrued and other current liabilities	$ 100		100
Operating expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred	$ 100	$ 600	$ 300	$ 700
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred		$ 100		$ 100