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Acquisition of Kurbo Health, Inc. - Additional Information (Detail) - USD ($) $ in Thousands | Aug. 10, 2018 | Sep. 28, 2019 | Dec. 29, 2018
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Business acquisition, purchase price allocation, goodwill |  | $ 152,806 | $ 152,519
Kurbo Health, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Business acquisition, purchase price allocation, net purchase price | $ 3,063 |  |
Business acquisition, purchase price allocation, goodwill | 1,101 | $ 152,806 | $ 152,519
Business acquisition, purchase price allocation, prepaid expenses | 78 |  |
Business acquisition, purchase price allocation, other assets | 32 |  |
Business acquisition, purchase price allocation, deferred revenue | 57 |  |
Business acquisition, purchase price allocation, other liabilities | 7 |  |
Kurbo Health, Inc. | Website Development |  |  |
Business Acquisition [Line Items] |  |  |
Business acquisition, purchase price allocation, finite lived intangible assets | $ 1,916 |  |

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