Acquisitions and Purchase Accounting Acquisition and Purchase Accounting - Other 2019 Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Goodwill	$ 1,849,747	$ 1,743,175	$ 1,264,810
2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,673
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	22,505
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	8,938
Goodwill	96,742
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	64,218
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent	2,766
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	991
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(20,972)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(6,699)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	171,162
Business Combination, Deferred Payments, Liability	2,404
Business Combination, Contingent Consideration, Liability	4,258
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	177,824
Business Combinations, Deferred Tax Assets, Operating Loss Carryforwards	3,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	(900)
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	700
Business Acquisition, Goodwill, Expected Tax Deductible Amount	85,500
Business Combination, Intangible Assets, Other than Goodwill, Expected Tax Deductible Amount	54,100
Scenario, Previously Reported | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,683
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	21,525
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	8,920
Goodwill	99,838
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	64,019
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent	1,288
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	137
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(20,437)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(6,170)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	171,803
Business Combination, Deferred Payments, Liability	2,404
Business Combination, Contingent Consideration, Liability	4,258
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	178,465
Scenario, Adjustment | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	(10)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	980
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	18
Goodwill	(3,096)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	199
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent	1,478
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	854
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(535)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(529)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	(641)
Business Combination, Deferred Payments, Liability	0
Business Combination, Contingent Consideration, Liability	0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	(641)
Customer Relationships | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	23,900
Developed Technology Rights | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	9,200
Backlog | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 1,500
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months
Tradenames And Trademarks | 2019 acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 29,600
Commercial Foodservice Equipment Group
Business Acquisition [Line Items]
Goodwill	1,153,552	1,102,067	631,451
Commercial Foodservice Equipment Group | 2019 acquisitions
Business Acquisition [Line Items]
Goodwill	43,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	35,200
Food Processing Group
Business Acquisition [Line Items]
Goodwill	257,679	219,054	198,278
Food Processing Group | 2019 acquisitions
Business Acquisition [Line Items]
Goodwill	43,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	21,300
Residential Kitchen
Business Acquisition [Line Items]
Goodwill	438,516	$ 422,054	$ 435,081
Residential Kitchen | 2019 acquisitions
Business Acquisition [Line Items]
Goodwill	9,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 7,700
Maximum | Customer Relationships | 2019 acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Maximum | Developed Technology Rights | 2019 acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Minimum | Customer Relationships | 2019 acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years
Minimum | Developed Technology Rights | 2019 acquisitions
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years