Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed QualServ (Details) - USD ($) $ in Thousands		3 Months Ended
	Aug. 31, 2017	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017
Business Acquisition [Line Items]
Goodwill		$ 1,293,896		$ 1,264,810
Payments to Acquire Businesses, Net of Cash Acquired		29,459	$ 2,696
QualServ [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 1,130
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	17,967
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	4,785
Goodwill	14,531
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	9,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(6,940)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	41,073
Payments to Acquire Businesses, Net of Cash Acquired	39,900
Business Combination, Provisional Information Adjustment, Working Capital	300
Scenario, Previously Reported [Member] | QualServ [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	1,130
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	18,031
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	4,785
Goodwill	14,590
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	9,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(6,810)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	41,326
Scenario, Adjustment [Member] | QualServ [Member]
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	(64)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	0
Goodwill	(59)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(130)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	(253)
Commercial Foodservice Equipment Group [Member]
Business Acquisition [Line Items]
Goodwill		$ 635,805		$ 631,451
Trade Names [Member] | Commercial Foodservice Equipment Group [Member] | QualServ [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,200
Customer Relationships [Member] | QualServ [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 3,300
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Backlog [Member] | QualServ [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 100
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months