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Restructuring, Acquisition and Divestiture Related Costs - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | 39 Months Ended
--- | --- | --- | --- | ---
Sep. 28, 2018 | Sep. 29, 2017 | Sep. 28, 2018 | Sep. 29, 2017 | Sep. 27, 2019 | Sep. 28, 2018
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs | $ 137 |  | $ 1,125 | $ 200 |  |
Acquisition and related charges | 2,204 | $ 3,834 | 3,680 | 6,032 |  |
Finders' Fees, Legal, Valuation And Other Professional Or Consulting Fees |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Acquisition and related charges |  | $ 3,800 |  | 6,000 |  |
Precision Motion | Finders' Fees, Legal, Valuation And Other Professional Or Consulting Fees |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Acquisition and related charges | 500 |  | 900 |  |  |
Precision Motion | Earn-out Agreement |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Acquisition and related charges | 1,700 |  | 2,800 |  |  |
2018 Restructuring |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs | 137 |  | $ 1,125 |  |  |
2018 Restructuring | Vision |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring plan |  |  | During the second quarter of 2018, the Company initiated a program to integrate manufacturing operations as a result of recent acquisition activities. During the three and nine months ended September 28, 2018, the Company recorded $0.1 million and $1.1 million, respectively, in severance and related costs in connection with the 2018 restructuring plan. These costs were reported in the Vision reportable segment. The Company anticipates completing the 2018 restructuring program during the third quarter of 2019 and expects to incur additional restructuring charges of $1.2 million to $1.5 million related to the 2018 restructuring program in the Vision reportable segment in the next twelve months. |  |  |
2018 Restructuring | Vision | Severance Costs |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs | $ 100 |  | $ 1,100 |  |  |
2018 Restructuring | Vision | Additional Restructuring Costs | Minimum | Scenario, Forecast |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs |  |  |  |  | $ 1,200 |
2018 Restructuring | Vision | Additional Restructuring Costs | Maximum | Scenario, Forecast |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs |  |  |  |  | $ 1,500 |
2016 Restructuring |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring plan |  |  | During the third quarter of 2015, the Company initiated the 2016 restructuring program, which included consolidating certain manufacturing operations to optimize its facility footprint and better utilize resources, and reducing redundant costs due to productivity cost savings and business volume reductions. As of September 28, 2018, the Company incurred cumulative costs related to this restructuring plan totaling $6.5 million. The plan was completed in 2017. |  |  |
Restructuring Costs |  |  |  | $ 186 |  |
2016 Restructuring | Cumulative Restructuring Costs |  |  |  |  |  |
Restructuring and Acquisition Related Costs [Line Items] |  |  |  |  |  |
Restructuring Costs |  |  |  |  |  | $ 6,500

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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 Information pertinent to an understanding of the specified type of restructuring cost, including the facts and circumstances leading to the expected activity, discussion of the level and quantity of personnel to be terminated, and the expected completion date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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