Annual report pursuant to Section 13 and 15(d)

Significant Customer and Geographic Information (Details)

v3.8.0.1
Significant Customer and Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Concentration Risk [Line Items]                      
Long lived assets                 $ 575,695 $ 200,825  
Long-lived Assets by Geographic Areas [Table Text Block]                
Long-lived assets, which consists of property and equipment, intangible assets, and goodwill, by geographic area are as follows (in thousands):
 
As of December 31,
 
2017
 
2016
 
Amount
 
% of total
 
Amount
 
% of total
United States
$
481,638

 
84
%
 
$
111,336

 
55
%
Singapore
92,414

 
16
%
 
78,318

 
39
%
Rest of world
1,643

 
%
 
11,171

 
6
%
Total
$
575,695

 
100
%
 
$
200,825

 
100
%
   
Net revenue $ 113,721 $ 113,581 $ 104,175 $ 88,841 $ 87,136 $ 96,324 $ 101,687 $ 102,685 $ 420,318 387,832 $ 300,360
Asia [Member]                      
Concentration Risk [Line Items]                      
Net revenue                 372,103 360,325 274,169
UNITED STATES                      
Concentration Risk [Line Items]                      
Long lived assets                 481,638 111,336  
Net revenue                 10,829 9,181 10,819
Rest of World [Member]                      
Concentration Risk [Line Items]                      
Long lived assets                 1,643 11,171  
Net revenue                 37,386 18,326 $ 15,372
SINGAPORE                      
Concentration Risk [Line Items]                      
Long lived assets                 $ 92,414 $ 78,318  
Long lived assets [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 1 1  
Long lived assets [Member] | UNITED STATES                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 0.84 0.55  
Long lived assets [Member] | Rest of World [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 0 0.06  
Long lived assets [Member] | SINGAPORE                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 0.16 0.39  
Net Revenue [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 100.00% 100.00% 100.00%
Net Revenue [Member] | Asia [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 89.00% 93.00% 91.00%
Net Revenue [Member] | UNITED STATES                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 2.00% 2.00% 4.00%
Net Revenue [Member] | Rest of World [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 9.00% 5.00% 5.00%
Accounts Receivable [Member] | Customer C [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 17.00% 17.00%  
Accounts Receivable [Member] | Customer E [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   12.00%  
Accounts Receivable [Member] | Customer D [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 10.00% 15.00%  
Customer Concentration Risk [Member] | Net Revenue [Member] | Customer A [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 25.00% 27.00% 28.00%
Customer Concentration Risk [Member] | Net Revenue [Member] | Customer B [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   10.00% 13.00%
Geographic Concentration Risk [Member] | Net Revenue [Member] | China [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 71.00% 78.00% 77.00%
Supplier Concentration Risk [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 15.00% 11.00% 11.00%
Supplier Concentration Risk [Member] | Vendor A [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 21.00% 16.00% 12.00%
Supplier Concentration Risk [Member] | Vendor B [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 16.00% 13.00% 14.00%
Supplier Concentration Risk [Member] | Vendor D [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 14.00% 11.00% 11.00%
Supplier Concentration Risk [Member] | Vendor E [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 11.00% 18.00% 22.00%
Supplier Concentration Risk [Member] | Vendor F [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   12.00% 11.00%