Acquisitions and Purchase Accounting Acquisitions and Purchase Accounting - Burford (Details) - USD ($) $ in Thousands		12 Months Ended
	May 01, 2017	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Business Acquisition [Line Items]
Goodwill		$ 1,264,810	$ 1,092,722	$ 983,339
Payments to Acquire Businesses, Net of Cash Acquired		305,251	210,921	348,625
Burford [Member]
Business Acquisition [Line Items]
Business Combination, Provisional Information Adjustment, Working Capital	$ 300
Business Combinations, Deferred Tax Assets, Operating Loss Carryforwards	700
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	2,514
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	6,550
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	643
Goodwill	8,097
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,740
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	3,215
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	1,228
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	2,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	2,761
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	17,340
Payments to Acquire Businesses, Net of Cash Acquired	14,800
Scenario, Previously Reported [Member] | Burford [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,514
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	6,424
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	656
Goodwill	7,289
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	4,900
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	2,254
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	1,840
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	17,689
Scenario, Adjustment [Member] | Burford [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	126
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	(13)
Goodwill	808
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	1,840
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	961
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(612)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	2,761
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	(349)
Food Processing Group [Member]
Business Acquisition [Line Items]
Goodwill		$ 198,278	$ 134,680	$ 134,092
Customer Relationships [Member] | Burford [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 3,100
Customer Relationships [Member] | Food Processing Group [Member] | Burford [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Developed Technology Rights [Member] | Burford [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 700
Developed Technology Rights [Member] | Food Processing Group [Member] | Burford [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Backlog [Member] | Burford [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 300
Backlog [Member] | Food Processing Group [Member] | Burford [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months
Trade Names [Member] | Food Processing Group [Member] | Burford [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 2,700