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Fair Value and Derivative Instruments - Additional Information (Details) $ in Thousands, € in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 09, 2019 EUR (€) | Sep. 26, 2020 USD ($) | Jun. 27, 2020 USD ($) | Sep. 26, 2020 USD ($) | Sep. 28, 2019 USD ($) | Dec. 28, 2019 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Change in amount of contingent consideration |  | $ (3,600) | $ 1,200 | $ (3,771) | $ 0 |
Contingent consideration, liability |  | $ 2,966 |  | 2,966 |  | $ 5,364
Business Combination Contingent Consideration Arrangements, Change In Amount Of Contingent Consideration Liability, Net |  |  |  | $ (2,400) |  |
FRT |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Contingent Consideration, Calculation Amount, Multiple of EBIT | 150.00% |  |  |  |  |
FRT | Maximum |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Contingent consideration, liability | € | € 10.3 |  |  |  |  |

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