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Business Segment and Geographical Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2018 USD ($) Segment	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment	2
Segment Reporting Information [Line Items]
Acquisition transaction costs	$ 1,321	$ 5,375	$ 1,832
Restructuring and other expense (income)	1,717	203	(317)
Curtailment gain (loss)	1,078	0	0
Operating Segments | Papermaking Systems
Segment Reporting Information [Line Items]
Acquisition transaction costs		787	3,491
Restructuring and other expense (income)	1,717	203	$ (317)
Operating Segments | Wood Processing Systems
Segment Reporting Information [Line Items]
Acquisition transaction costs	252	$ 11,163
General and Administrative Expense
Segment Reporting Information [Line Items]
Acquisition transaction costs	$ 1,321

X

- Definition

Restructuring and other costs consist principally of severance costs; abandoned facility and other expenses of real estate consolidation; and, in some periods, may also include gains and losses on the sale of real estate.

+ References

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount, after tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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