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Other Income, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Other Income, Net |  |  |
Interest income | $ 8,070 | $ 3,879 | $ 2,917
Gains (losses) on marketable equity investments | (551) | 520 | 263
Gains on non-marketable equity investments | 3,300 | 8,934 | 2,668
Gains (losses) on securities in NQDC trust | (1,471) | 6,145 | 1,741
Gains (losses) on foreign exchange | (5,557) | (2,920) | 6,879
Gain on sale of property, plant and equipment | 0 | 0 | 923
Other income (loss), net | (471) | 197 | 531
Total other income, net | $ 3,320 | $ 16,755 | $ 15,922

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