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SUPPLEMENTAL BALANCE SHEET INFORMATION - Composition of Other Assets (Details) - USD ($) $ in Thousands | Dec. 28, 2019 | Dec. 30, 2018 | Dec. 29, 2018 | Dec. 30, 2017
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Supplemental Balance Sheet Information [Abstract] |  |  |  |
Venture capital investments | $ 108,983 |  | $ 87,545 |
Other investments | 13,996 |  | 1,046 |
Life insurance policies | 38,207 |  | 32,340 |
Restricted cash | 1,601 |  | 1,411 | $ 1,945
Other | 49,828 |  | 21,417 |
Other assets | $ 212,615 | $ 138,770 | $ 143,759 |

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