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Non-operating income Non-operating income (Tables) | 6 Months Ended
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Jun. 27, 2020
Nonoperating Income (Expense) [Abstract] |
Schedule of Other Nonoperating Income (Expense) | Non-operating income consists of the following (in thousands):
| Three Months Ended |  | Six Months Ended
| June 27, 2020 |  | June 29, 2019 |  | June 27, 2020 |  | June 29, 2019
Interest income | $ | 1,478 |  |  | $ | 3,609 |  |  | $ | 4,323 |  |  | $ | 7,042 |
Interest expense | (83 | ) |  | (80 | ) |  | (167 | ) |  | (161 | )
Realized and unrealized foreign currency gains | 11 |  |  | 6 |  |  | 599 |  |  | 541 |
Other | (1 | ) |  | (6 | ) |  | (4 | ) |  | (7 | )
Total | $ | 1,405 |  |  | $ | 3,529 |  |  | $ | 4,751 |  |  | $ | 7,415 |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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