Annual report pursuant to Section 13 and 15(d)

Significant Customer and Geographic Information (Details)

v3.10.0.1
Significant Customer and Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Concentration Risk [Line Items]                      
Long lived assets                 $ 501,634 $ 575,695  
Net revenue $ 87,627 $ 85,010 $ 101,533 $ 110,827 $ 113,721 $ 113,581 $ 104,175 $ 88,841 384,997 420,318 $ 387,832
Asia [Member]                      
Concentration Risk [Line Items]                      
Net revenue                 312,877 372,103 360,325
UNITED STATES                      
Concentration Risk [Line Items]                      
Long lived assets                 426,321 481,638  
Net revenue                 18,060 10,829 9,181
Rest of World [Member]                      
Concentration Risk [Line Items]                      
Long lived assets                 3,368 1,643  
Net revenue                 54,060 37,386 $ 18,326
SINGAPORE                      
Concentration Risk [Line Items]                      
Long lived assets                 $ 71,945 $ 92,414  
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                 0.85 0.84  
Long lived assets [Member] | Rest of World [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 0.01 0  
Long lived assets [Member] | SINGAPORE                      
Concentration Risk [Line Items]                      
Concentration Risk, Benchmark Description                 0.14 0.16  
Sales Revenue, Net [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 100.00% 100.00% 100.00%
Sales Revenue, Net [Member] | Asia [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 81.00% 89.00% 93.00%
Sales Revenue, Net [Member] | UNITED STATES                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 5.00% 2.00% 2.00%
Sales Revenue, Net [Member] | Rest of World [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 14.00% 9.00% 5.00%
Accounts Receivable [Member] | Customer C [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   17.00%  
Accounts Receivable [Member] | Customer E [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 10.00%    
Accounts Receivable [Member] | Customer D [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   10.00%  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Customer A [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 18.00% 25.00% 27.00%
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Customer B [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                     10.00%
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | China [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 63.00% 71.00% 78.00%
Supplier Concentration Risk [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 15.00% 15.00% 11.00%
Supplier Concentration Risk [Member] | Vendor A [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 16.00% 21.00% 16.00%
Supplier Concentration Risk [Member] | Vendor B [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 19.00% 16.00% 13.00%
Supplier Concentration Risk [Member] | Vendor D [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                   14.00% 11.00%
Supplier Concentration Risk [Member] | Vendor E [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                 13.00% 11.00% 18.00%
Supplier Concentration Risk [Member] | Vendor F [Member]                      
Concentration Risk [Line Items]                      
Concentration Risk, Percentage                     12.00%