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Acquisitions - Additional Information (Detail) |  |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 13, 2019 USD ($) | Apr. 25, 2018 USD ($) | Jan. 30, 2019 USD ($) | Sep. 27, 2020 USD ($) | Jun. 28, 2020 USD ($) | Jan. 31, 2019 USD ($)
Mobile Industrial Robots (MiR) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total preliminary purchase price |  | $ 81,599,000 |  |  |  |
Arrangement range of outcomes value high |  |  |  | $ 65,800,000 |  |
Goodwill, not deductible for tax purposes |  | $ 41,200,000 |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 6 years 1 month 6 days |  |  |  |
Lemsys [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total preliminary purchase price |  |  |  |  |  | $ 1,400,000
Total preliminary purchase price |  |  | $ 9,100,000 |  |  |
Acquired value of intangible assets |  |  |  |  |  | 4,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  | 5 years 2 months 12 days |  |  |
Net tangible assets |  |  |  |  |  | $ 3,100,000
Autoguide LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Arrangement range of outcomes value high |  |  |  | $ 106,900,000 | $ 106,900,000 |
Autoguide LLC [Member] | Industrial Automation [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total preliminary purchase price | $ 81,600,000 |  |  |  |  |
Cash paid to acquire outstanding common and preferred stock | 57,600,000 |  |  |  |  |
Contingent consideration | $ 24,000,000.0 |  |  |  |  |
Quantity of material to be transported |  |  |  | 4,500 |  |
Business acquisition percentage of equity | 100.00% |  |  |  |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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