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Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Finite-Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization | $ 30,148 | $ 27,234 |
Cost of patents, Gross | 6,100 | 5,300 |
Cost of trademarks, Gross | 700 | 500 |
Patents And Trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization | 4,400 | 4,800 | $ 4,900
Total renewal costs capitalized | 1,300 | 500 |
Patents |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization | $ 9,251 | 8,868 |
Weighted average number of years until the next renewal | 2 years |  |
Trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization | $ 2,195 | $ 1,889 |
Weighted average number of years until the next renewal | 6 years |  |

X
- Definition Gross carrying amount, which is not subject to amortization, as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. + References No definition available. + Details
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X
- Definition Gross carrying amount, which is not subject to amortization, as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time. + References No definition available. + Details
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X
- Definition Weighted average period before the next renewal or extension (both explicit and implicit) for intangible assets that have been renewed or extended, 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 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition The amount of capitalized costs incurred in the period to renew or extend the term of a recognized finite-lived (amortizing and amortizable) intangible asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition 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. + References No definition available. + Details
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- Details
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