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Stock Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2019 | Sep. 29, 2018 | Sep. 28, 2019 | Sep. 29, 2018
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | $ 48,279 | $ 46,264 | $ 134,789 | $ 125,121
Cost of product and maintenance |  |  |  |
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | 731 | 736 | 2,064 | 1,932
Cost of services |  |  |  |
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | 931 | 1,078 | 2,626 | 2,825
Marketing and sales |  |  |  |
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | 10,424 | 9,528 | 29,039 | 25,410
Research and development |  |  |  |
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | 30,458 | 28,668 | 85,015 | 77,003
General and administrative |  |  |  |
Share-based compensation expense and allocation by cost [Line Items] |  |  |  |
Stock-based compensation expense | $ 5,735 | $ 6,254 | $ 16,045 | $ 17,951

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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