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Acquisitions (Details Textual) $ in Thousands | 12 Months Ended
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Dec. 29, 2018 USD ($) | Dec. 30, 2017 USD ($) | Dec. 31, 2016 USD ($) acquisition
Business Acquisition [Line Items] |  |  |
Cash paid in business combinations and asset acquisitions, net of cash acquired | $ 0 | $ 143,249 | $ 41,627
Goodwill resulting from acquisitions |  | 90,218 |
Transaction costs associated with acquisitions | $ 0 | $ 600 | $ 1,100
2017 Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of businesses acquired |  | 2 |
Cash paid in business combinations and asset acquisitions, net of cash acquired |  | $ 142,800 |
Cash acquired |  | 4,200 |
Technology-based intangible assets |  | 76,400 |
Goodwill resulting from acquisitions |  | 90,200 |
Net other identifiable assets and liabilities resulting from acquisitions |  | $ (19,600) |
2016 Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of businesses acquired | acquisition |  |  | 2
Cash paid in business combinations and asset acquisitions, net of cash acquired |  |  | $ 42,400
Cash acquired |  |  | 1,800
Goodwill resulting from acquisitions |  |  | 23,600
Net other identifiable assets and liabilities resulting from acquisitions |  |  | (2,600)
Finite-lived intangible assets resulting from acquisitions |  |  | $ 23,200
Trust For Benefit Of Children of Chief Executive Officer [Member] | nusemi inc [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Related party ownership percentage in acquired company |  | 3.00% |
Trust For Benefit Of Children of Chief Executive Officer [Member] | Rocketick Technologies [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Related party ownership percentage in acquired company |  |  | 2.00%
In-Process Technology [Member] | 2017 Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
In-process technology |  | $ 71,500 |

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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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