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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers $ 100,237 $ 103,469 $ 102,296 $ 98,091 $ 95,977 $ 101,484 $ 102,715 $ 98,623 $ 404,093 $ 398,799 $ 385,961
Revenue from contracts with customers, percentage 100.00%       100.00%       100.00% 100.00% 100.00%
Asia                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 298,765 $ 298,119 $ 277,638
Revenue from contracts with customers, percentage 74.00%       75.00%       74.00% 75.00% 72.00%
Europe                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 47,392 $ 45,546 $ 44,547
Revenue from contracts with customers, percentage 12.00%       11.00%       12.00% 11.00% 12.00%
Americas                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 57,936 $ 55,134 $ 63,776
Revenue from contracts with customers, percentage 14.00%       14.00%       14.00% 14.00% 16.00%
Product                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 382,548 $ 380,468 $ 356,502
Revenue from contracts with customers, percentage 95.00%       95.00%       95.00% 95.00% 92.00%
Licensing and services                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 21,545 $ 18,331 $ 29,459
Revenue from contracts with customers, percentage 5.00%       5.00%       5.00% 5.00% 8.00%
Product revenue - Distributors                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 331,941 $ 330,719 $ 297,736
Revenue from contracts with customers, percentage 82.00%       83.00%       82.00% 83.00% 77.00%
Product revenue - Direct                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 50,607 $ 49,749 $ 58,766
Revenue from contracts with customers, percentage 13.00%       12.00%       13.00% 12.00% 15.00%
Licensing and services revenue                      
Disaggregation of Revenue [Line Items]                      
Revenue from contracts with customers                 $ 21,545 $ 18,331 $ 29,459
Revenue from contracts with customers, percentage 5.00%       5.00%       5.00% 5.00% 8.00%