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Non-operating (income) expense (Notes) | 12 Months Ended
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Dec. 29, 2018
Nonoperating Income (Expense) [Abstract] |
Other non-operating Income and Expense | Non-operating (income) expense Non-operating (income) expense consists of the following (in thousands):
| December 29, 2018 |  | December 30, 2017 |  | December 31, 2016
Interest income | $ | (8,178 | ) |  | $ | (2,974 | ) |  | $ | (464 | )
Realized and unrealized foreign currency (gain) loss | 2,027 |  |  | 270 |  |  | (103 | )
Interest expense | 706 |  |  | 678 |  |  | 3,260 |
Other | (287 | ) |  | 13 |  |  | (264 | )
Total | $ | (5,732 | ) |  | $ | (2,013 | ) |  | $ | 2,429 |

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- Definition The entire disclosure for the components of non-operating income or non-operating expense, including, but not limited to, amounts earned from dividends, interest on securities, gain (loss) on securities sold, equity earnings of unconsolidated affiliates, gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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