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Acquisitions (Details Textual) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 03, 2021 | Mar. 28, 2020
Business Acquisition [Line Items] |  |
Cash consideration to acquire businesses, net of cash acquired | $ 189,262 | $ 193,820
NUMECA |  |
Business Acquisition [Line Items] |  |
Cash consideration to acquire businesses, net of cash acquired | 189,300 |
Cash acquired from acquisition during period | $ 9,500 |

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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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