Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed - 2020 Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2020	Dec. 28, 2019
Business Acquisition [Line Items]
Goodwill	$ 1,835,787	$ 1,849,747
2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Deferred Payments, Liability	1,300
Business Combination, Contingent Consideration, Liability	1,800
Previously Reported \| 2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,347
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	31,089
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	1,032
Goodwill	12,776
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	16,484
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,708
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(30,005)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(3,070)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	32,361
Business Combination, Deferred Payments, Liability	1,250
Business Combination, Contingent Consideration, Liability	1,774
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	35,385
Tradenames And Trademarks \| 2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	9,000
Customer Relationships \| 2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,500
Developed Technology Rights \| 2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	200
Backlog \| 2020 Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 800
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 months
Maximum \| Customer Relationships \| 2020 Acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Maximum \| Developed Technology Rights \| 2020 Acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Commercial Foodservice Equipment Group
Business Acquisition [Line Items]
Goodwill	$ 1,156,923	$ 1,153,552
Commercial Foodservice Equipment Group \| 2020 Acquisitions
Business Acquisition [Line Items]
Goodwill	12,800
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 16,500

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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