Restructuring - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 2,332	$ 1,321
Costs of restructuring	$ 585	585	603	$ 198
Closure of Edgewood Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	600	600
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		790	541
Costs of restructuring	542	542	531	$ 0
Employee Severance | Closure of Edgewood Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	300	300
Restructuring charges		100
Employee Severance | Closure of China Administrative Office | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200
Employee Severance | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges		300
Employee Severance | 2015 Restructuring Plan | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges		200
Employee Severance | Closure of Tigard Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges		600
Move Equipment and Facility Lease Costs | Closure of Edgewood Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	300	300
Costs to Move Equipment | Closure of Tigard Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,800
Capital Investment | Closure of Edgewood Facility
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	100	100
Facility Closing | Closure of Tigard Facility | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,200	$ 1,200
Restructuring charges incurred to date	2,400	2,400
Restructuring costs incurred		2,400
Minimum | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	10,000	10,000
Minimum | Employee Severance | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	3,000	3,000
Minimum | Costs to Move Equipment | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	5,000	5,000
Minimum | Capital Investment | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	2,000	2,000
Maximum | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	14,000	14,000
Maximum | Employee Severance | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	4,000	4,000
Maximum | Costs to Move Equipment | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	7,000	7,000
Maximum | Capital Investment | 2015 Restructuring Plan | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	$ 3,000	$ 3,000