Acquisitions and Purchase Accounting Acquisitions and Purchase Accounting - CVP Systems (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 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
Stock Issued During Period, Shares, Acquisitions	106,254
Stock Issued During Period, Value, Acquisitions	$ 12,300
Goodwill		1,743,175	1,264,810	1,092,722
CVP Systems
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	29,800
Payments to Acquire Businesses, Gross	17,500
Stock Issued During Period, Value, Acquisitions		0	13,399	0
Business Combinations, Deferred Tax Assets, Operating Loss Carryforwards	600
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	800
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	621
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	4,538
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	147
Goodwill	19,602
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	13,050
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	2,113
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(3,611)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	5,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	1,833
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	30,401
Business Combination, Provisional Information Adjustment, Working Capital	500
Scenario, Adjustment | CVP Systems
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	(1,435)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	(91)
Goodwill	(695)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	4,350
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	581
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(443)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	1,833
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	(728)
Scenario, Previously Reported | CVP Systems
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	621
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	5,973
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	238
Goodwill	20,297
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	8,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	1,532
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(3,168)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	31,129
Food Processing Group
Business Acquisition [Line Items]
Goodwill		$ 219,054	$ 198,278	$ 134,680
Customer Relationships | CVP Systems
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 5,700
Customer Relationships | Food Processing Group | CVP Systems
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Developed Technology Rights | CVP Systems
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 800
Developed Technology Rights | Food Processing Group | CVP Systems
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Backlog | CVP Systems
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 300
Backlog | Food Processing Group | CVP Systems
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months
Trade Names | Food Processing Group | CVP Systems
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 6,200