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Financial Instruments - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 02, 2016 | Oct. 04, 2015 | Oct. 02, 2016 | Oct. 04, 2015 | Dec. 31, 2015
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Available-for-sale securities, realized loss | $ 100,000 |  | $ 400,000 | $ 200,000 |
Available-for-sale securities, realized gain | 700,000 | $ 400,000 | 1,200,000 | 1,400,000 |
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 458,774,000 |  | 458,774,000 |  | $ 601,660,000
Fair market value of investments with unrealized losses greater than one year | 3,100,000 |  | 3,100,000 |  | 900,000
Aggregate loss of investments with unrealized losses greater than one year |  |  | 200,000 |  | 500,000
Fair market value of investments with unrealized losses less than one year | 455,700,000 |  | 455,700,000 |  | 600,800,000
Aggregate loss of investments with unrealized losses less than one year |  |  | 400,000 |  | 3,600,000
Gains (losses) on foreign currency transactions | 1,900,000 | 100,000 | 12,200,000 | 2,300,000 |
Realized gain(loss) on foreign currency contracts | (700,000) | $ (800,000) | (10,800,000) | $ (2,700,000) |
Universal Robots |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Maximum payment per earn-out |  |  | 25,000,000 |  |
Avionics Interface Technologies, LLC |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Maximum payment per earn-out |  |  | 1,050,000 |  |
Foreign Currency Forward Contracts |  |  |  |  |
Financial Instruments and Fair Value [Line Items] |  |  |  |  |
Notional amount of foreign currency forward contracts | $ 76,500,000 |  | 76,500,000 |  | 114,100,000
Gains (losses) on foreign currency transactions |  |  | $ 400,000 |  | $ 0

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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