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Business Segment Information - Summary of Segment Information (Details) | 3 Months Ended
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Mar. 31, 2018 USD ($) Segment | Apr. 01, 2017 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | Segment | 2 |
Revenues: |  |
Revenues | $ 149,193,000 | $ 102,857,000
Income Before Provision for Income Taxes: |  |
Total operating income (loss) | 16,664,000 | 12,250,000
Interest expense, net | (1,549,000) | (244,000)
Other expense, net | (246,000) | (204,000)
Income Before Provision for Income Taxes | 14,869,000 | 11,802,000
Capital Expenditures: |  |
Capital expenditures | 5,151,000 | 1,722,000
Restructuring costs | 770,000 | 0
Operating Segment [Member] | Papermaking Systems [Member] |  |
Revenues: |  |
Revenues | 105,591,000 | 88,550,000
Income Before Provision for Income Taxes: |  |
Total operating income (loss) | 14,584,000 | 14,299,000
Capital Expenditures: |  |
Capital expenditures | 4,649,000 | 1,484,000
Restructuring costs | 770,000 |
Operating Segment [Member] | Papermaking Systems [Member] | 2017 Acquisitions [Member] |  |
Revenues: |  |
Revenues | 5,900,000 |
Operating Segment [Member] | Wood Processing Systems [Member] |  |
Revenues: |  |
Revenues | 39,141,000 | 9,943,000
Income Before Provision for Income Taxes: |  |
Total operating income (loss) | 7,363,000 | 2,504,000
Capital Expenditures: |  |
Capital expenditures | 376,000 | 186,000
Acquisition transaction costs | 252,000 | 319,000
Operating Segment [Member] | Wood Processing Systems [Member] | 2017 Acquisitions [Member] |  |
Revenues: |  |
Revenues | 28,870,000 |
Corporate and Fiber-based Products [Member] |  |
Income Before Provision for Income Taxes: |  |
Total operating income (loss) | (5,283,000) | (4,553,000)
Capital Expenditures: |  |
Capital expenditures | 126,000 | 52,000
Corporate and Fiber-based Products [Member] | Fiber based Products [Member] |  |
Revenues: |  |
Revenues | $ 4,461,000 | $ 4,364,000

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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