Quarterly report pursuant to Section 13 or 15(d)

Concentration of Credit Risk, Significant Customers and Geographic Information (Details)

v3.10.0.1
Concentration of Credit Risk, Significant Customers and Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Concentration Risk [Line Items]          
Net revenue $ 85,010 $ 113,581 $ 297,370 $ 306,597  
Net Revenue [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 100.00% 100.00% 100.00% 100.00%  
Net revenue $ 85,010 $ 113,581 $ 297,370 $ 306,597  
Net Revenue [Member] | Asia [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 81.00% 86.00% 81.00% 90.00%  
Net revenue $ 68,750 $ 97,236 $ 240,853 $ 276,367  
Net Revenue [Member] | UNITED STATES          
Concentration Risk [Line Items]          
Concentration risk percentage 5.00% 3.00% 5.00% 2.00%  
Net revenue $ 4,474 $ 3,714 $ 14,305 $ 5,954  
Net Revenue [Member] | Rest of World [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 14.00% 11.00% 14.00% 8.00%  
Net revenue $ 11,786 $ 12,631 $ 42,212 $ 24,276  
Net Revenue [Member] | Geographic Concentration Risk [Member] | China [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 61.00% 68.00% 62.00% 72.00%  
Long lived assets [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage     100.00%   100.00%
Long lived assets     $ 519,556   $ 575,695
Long lived assets [Member] | UNITED STATES          
Concentration Risk [Line Items]          
Concentration risk percentage     85.00%   84.00%
Long lived assets     $ 440,041   $ 481,638
Long lived assets [Member] | Rest of World [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage     1.00%   0.00%
Long lived assets     $ 2,662   $ 1,643
Long lived assets [Member] | SINGAPORE          
Concentration Risk [Line Items]          
Concentration risk percentage     14.00%   16.00%
Long lived assets     $ 76,853   $ 92,414
Vendor A [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 12.00% 21.00% 19.00% 21.00%  
Vendor B [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 24.00% 11.00% 19.00% 15.00%  
Vendor C [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 13.00% 16.00% 15.00% 14.00%  
Vendor E [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 11.00% 11.00% 12.00% 12.00%  
Vendor E [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage       15.00%  
Customer A [Member] | Net Revenue [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage   26.00% 21.00% 27.00%  
Customer B [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage         17.00%
Customer C [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage         10.00%