Acquisitions and Purchase Accounting Acquisitions and Purchase Accounting - Scanico (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 07, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 1,197,984	$ 305,251	$ 210,921
Goodwill		1,743,175	1,264,810	1,092,722
Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 6,766
Payments to Acquire Businesses, Net of Cash Acquired	34,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	3,353
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	420
Goodwill	25,331
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	18,240
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(8,104)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(4,760)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	41,246
Business Combination, Contingent Consideration, Liability	751
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	41,997
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	4,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	800
Business Combination, Provisional Information Adjustment, Working Capital	(300)
Commercial Foodservice Equipment Group
Business Acquisition [Line Items]
Goodwill		1,102,067	631,451	542,090
Food Processing Group
Business Acquisition [Line Items]
Goodwill		$ 219,054	$ 198,278	$ 134,680
Food Processing Group | Trade Names | Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	8,200
Customer Relationships | Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 8,300
Customer Relationships | Food Processing Group | Scanico
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Backlog | Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 1,700
Backlog | Food Processing Group | Scanico
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months
Scenario, Adjustment | Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	(75)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	(27)
Goodwill	(4,741)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,749
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(117)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(1,455)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	334
Business Combination, Contingent Consideration, Liability	0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	334
Scenario, Previously Reported | Scanico
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	6,766
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	3,428
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	447
Goodwill	30,072
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	11,491
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(7,987)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(3,305)
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net	40,912
Business Combination, Contingent Consideration, Liability	751
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 41,663