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Franchise Rights Acquired, Goodwill and Other Intangible Assets - Change in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 28, 2020 | Mar. 30, 2019
Goodwill [Line Items] |  |
Beginning balance | $ 157,916 |
Goodwill impairment | (3,665) | $ 0
Ending balance | 150,457 |
Kurbo Health, Inc. |  |
Goodwill [Line Items] |  |
Beginning balance | 157,916 |
Goodwill impairment | (3,665) |
Effect of exchange rate changes | (3,794) |
Ending balance | 150,457 |
Kurbo Health, Inc. | North America |  |
Goodwill [Line Items] |  |
Beginning balance | 143,940 |
Goodwill impairment | 0 |
Effect of exchange rate changes | (2,642) |
Ending balance | 141,298 |
Kurbo Health, Inc. | Continental Europe |  |
Goodwill [Line Items] |  |
Beginning balance | 7,015 |
Goodwill impairment | 0 |
Effect of exchange rate changes | (201) |
Ending balance | 6,814 |
Kurbo Health, Inc. | United Kingdom |  |
Goodwill [Line Items] |  |
Beginning balance | 1,213 |
Goodwill impairment | 0 |
Effect of exchange rate changes | (59) |
Ending balance | 1,154 |
Kurbo Health, Inc. | Other |  |
Goodwill [Line Items] |  |
Beginning balance | 5,748 |
Goodwill impairment | (3,665) |
Effect of exchange rate changes | (892) |
Ending balance | $ 1,191 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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