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Business Segment Information - Summary of Segment Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) | Jul. 01, 2017 USD ($) | Jun. 30, 2018 USD ($) Segment | Jul. 01, 2017 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | Segment |  |  | 2 |
Revenues: |  |  |  |
Revenues | $ 154,913 | $ 110,242 | $ 304,106 | $ 213,099
Income Before Provision for Income Taxes: |  |  |  |
Total operating income (loss) | 19,735 | 11,660 | 36,399 | 23,910
Interest expense, net | (1,728) | (290) | (3,277) | (534)
Other expense, net | (245) | (217) | (491) | (421)
Income Before Provision for Income Taxes | 17,762 | 11,153 | 32,631 | 22,955
Capital Expenditures: |  |  |  |
Capital expenditures | 5,060 | 1,713 | 10,211 | 3,435
Restructuring costs | 569 | 0 | 1,339 | 0
Operating Segment [Member] | Papermaking Systems [Member] |  |  |  |
Revenues: |  |  |  |
Revenues | 118,450 | 95,731 | 224,041 | 184,281
Income Before Provision for Income Taxes: |  |  |  |
Total operating income (loss) | 20,899 | 17,264 | 35,483 | 31,563
Capital Expenditures: |  |  |  |
Capital expenditures | 3,840 | 1,293 | 8,489 | 2,777
Restructuring costs | 569 | 315 | 1,339 | 315
Operating Segment [Member] | Papermaking Systems [Member] | 2017 Acquisitions [Member] |  |  |  |
Revenues: |  |  |  |
Revenues | 5,430 |  | 11,330 |
Operating Segment [Member] | Wood Processing Systems [Member] |  |  |  |
Revenues: |  |  |  |
Revenues | 33,152 | 11,393 | 72,293 | 21,336
Income Before Provision for Income Taxes: |  |  |  |
Total operating income (loss) | 5,313 | (411) | 12,676 | 2,093
Capital Expenditures: |  |  |  |
Capital expenditures | 1,184 | 105 | 1,560 | 291
Acquisition transaction costs |  | 3,783 | 252 | 4,102
Operating Segment [Member] | Wood Processing Systems [Member] | 2017 Acquisitions [Member] |  |  |  |
Revenues: |  |  |  |
Revenues | 23,440 |  | 52,310 |
Corporate and Fiber-based Products [Member] |  |  |  |
Income Before Provision for Income Taxes: |  |  |  |
Total operating income (loss) | (6,477) | (5,193) | (11,760) | (9,746)
Capital Expenditures: |  |  |  |
Capital expenditures | 36 | 315 | 162 | 367
Corporate and Fiber-based Products [Member] | Fiber based Products [Member] |  |  |  |
Revenues: |  |  |  |
Revenues | $ 3,311 | $ 3,118 | $ 7,772 | $ 7,482

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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 -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://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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