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Financial Instruments - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Available-for-sale securities, realized gain | $ 1,600,000 | $ 100,000 | $ 3,000,000.0 | $ 200,000 |
Available-for-sale securities, realized loss | 100,000 |  | 200,000 | 100,000 |
Fair market value of investments with unrealized losses less than one year | 20,200,000 |  | 20,200,000 |  | $ 23,600,000
Unrealized Gain (loss) on contracts | 400,000 | 1,300,000 | 1,600,000 | 1,900,000 |
Equity securities unrealized gain loss |  | $ 900,000 |  | $ 3,700,000 |
Equity securities unrealized (gains) loss | 3,700,000 |  | 6,000,000.0 |  |
Debt Mutual Funds |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Available for sale securities with out contractual maturity date | 6,900 |  | 6,900 |  |
Mobile Industrial Robots (MiR) |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Maximum amount of contingent consideration paid for acquisition | 63,500,000 |  | 63,500,000 |  |
Autoguide LLC [Member] |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Maximum amount of contingent consideration paid for acquisition | $ 106,900,000 |  | 106,900,000 |  |
Foreign Exchange Contracts |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Unrealized Gain (loss) on contracts |  |  | $ 125,000,000.0 |  | $ 144,900,000

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- Definition Foreign Currency Transaction (Loss), Unrealized + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563 + Details
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- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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- Definition This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714 + Details
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