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Acquisitions and Purchase Accounting Estimated Fair Value of Assets Acquired and Liabilities Assumed - MTek (Details) - USD ($) $ in Thousands |  | 6 Months Ended |
--- | --- | --- | ---
Oct. 01, 2018 | Jun. 29, 2019 | Jun. 30, 2018 | Dec. 29, 2018
Business Acquisition [Line Items] |  |  |  |
Current Fiscal Year End Date |  | --12-28 |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | $ 167,089 | $ 1,144,541 |
Goodwill |  | 1,781,772 |  | $ 1,743,175
M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 20,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 4,294 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | 2,745 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 2,497 |  |  |
Goodwill | 10,610 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | (144) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 20,002 |  |  |
Food Processing Group |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 215,067 |  | $ 219,054
Customer Relationships | Food Processing Group | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 2,700 |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years |  |  |
Developed Technology Rights | Food Processing Group | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 300 |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years |  |  |
Backlog | Food Processing Group | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 300 |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 3 months |  |  |
Previously Reported | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 3,294 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | 2,745 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 2,497 |  |  |
Goodwill | 11,610 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | (144) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 20,002 |  |  |
Scenario, Adjustment | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 1,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets | 0 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 0 |  |  |
Goodwill | (1,000) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | 0 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 0 |  |  |
Trade Names | Food Processing Group | M-TEK |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 1,000 |  |  |

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