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 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Concentration Risk [Line Items]          
Net revenue $ 101,533 $ 104,175 $ 212,360 $ 193,016  
Net Revenue [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 100.00% 100.00% 100.00% 100.00%  
Net revenue $ 101,533 $ 104,175 $ 212,360 $ 193,016  
Net Revenue [Member] | Asia [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 86.00% 91.00% 81.00% 93.00%  
Net revenue $ 87,289 $ 94,823 $ 172,103 $ 179,131  
Net Revenue [Member] | UNITED STATES          
Concentration Risk [Line Items]          
Concentration risk percentage 5.00% 2.00% 5.00% 1.00%  
Net revenue $ 4,636 $ 2,095 $ 9,831 $ 2,240  
Net Revenue [Member] | Rest of World [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 9.00% 7.00% 14.00% 6.00%  
Net revenue $ 9,608 $ 7,257 $ 30,426 $ 11,645  
Net Revenue [Member] | Geographic Concentration Risk [Member] | China [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 65.00% 73.00% 63.00% 75.00%  
Long lived assets [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage     100.00%   100.00%
Long lived assets     $ 540,233   $ 575,695
Long lived assets [Member] | UNITED STATES          
Concentration Risk [Line Items]          
Concentration risk percentage     84.00%   84.00%
Long lived assets     $ 455,523   $ 481,638
Long lived assets [Member] | Rest of World [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage     0.00%   0.00%
Long lived assets     $ 2,687   $ 1,643
Long lived assets [Member] | SINGAPORE          
Concentration Risk [Line Items]          
Concentration risk percentage     15.00%   16.00%
Long lived assets     $ 82,023   $ 92,414
Vendor A [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 23.00% 19.00% 22.00% 21.00%  
Vendor B [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 15.00% 16.00% 17.00% 18.00%  
Vendor C [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage   20.00%   18.00%  
Vendor D [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 15.00% 15.00% 16.00% 13.00%  
Vendor E [Member] | Supplier Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 12.00% 10.00% 13.00% 13.00%  
Customer A [Member] | Net Revenue [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage 28.00% 26.00% 27.00% 29.00%  
Customer A [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Concentration risk percentage     23.00%    
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%