Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for CVP Acquisition (Details) - USD ($) $ in Thousands		9 Months Ended
	Jun. 30, 2017	Sep. 30, 2017	Oct. 01, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 159,458	$ 210,921
Goodwill		1,158,654		$ 1,092,722
Stock Issued During Period, Shares, Acquisitions	106,254		0
Stock Issued During Period, Value, Acquisitions	$ 12,300	12,330
Sveba Dahlen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	4,569
Payments to Acquire Businesses, Net of Cash Acquired	81,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	22,327
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	8,796
Goodwill	34,270
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	34,175
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(10,837)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	140
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(8,450)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	85,938
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	7,500
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	1,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,159
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(83)
CVP [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	621
Payments to Acquire Businesses, Net of Cash Acquired	30,500
Payments to Acquire Businesses, Gross	18,200
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	19,444
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	(1,719)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(4,952)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	31,129
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	5,100
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	100
Scenario, Previously Reported [Member] | Sveba Dahlen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	4,569
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	22,686
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	9,128
Goodwill	33,785
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	34,175
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(11,782)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(7,751)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	85,938
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,170
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(42)
Scenario, Previously Reported [Member] | CVP [Member]
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, Goodwill, and Liabilities Assumed, Net	31,129
Scenario, Adjustment [Member] | Sveba Dahlen [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	(359)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	(332)
Goodwill	485
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	945
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	140
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(699)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	(11)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	125
Scenario, Adjustment [Member] | CVP [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	(1,435)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	(91)
Goodwill	(853)
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	(187)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	(1,784)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	0
Food Processing Group [Member]
Business Acquisition [Line Items]
Goodwill		$ 164,183		$ 134,680
Food Processing Group [Member] | Trade Names [Member] | CVP [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,200
Customer Relationships [Member] | Sveba Dahlen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	12,000
Customer Relationships [Member] | CVP [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 5,700
Customer Relationships [Member] | Food Processing Group [Member] | CVP [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Developed Technology Rights [Member] | Sveba Dahlen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 1,200
Developed Technology Rights [Member] | CVP [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 800
Developed Technology Rights [Member] | Food Processing Group [Member] | CVP [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Backlog [Member] | Sveba Dahlen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 300
Backlog [Member] | CVP [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] | CVP [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 months