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Revenue (Tables) | 12 Months Ended
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Jan. 02, 2021
Revenue from Contract with Customer [Abstract] |
Revenue from external customers by product category | The following table shows the percentage of product and related maintenance revenue contributed by each of Cadence’s five product categories and services for fiscal 2020 and 2019:
| 2020 |  | 2019 |  | 2018
Custom IC Design and Simulation | 25 | % |  | 25 | % |  | 26 | %
Digital IC Design and Signoff | 29 | % |  | 30 | % |  | 29 | %
Functional Verification, including Emulation and Prototyping Hardware* | 22 | % |  | 23 | % |  | 24 | %
IP | 14 | % |  | 13 | % |  | 12 | %
System Design and Analysis | 10 | % |  | 9 | % |  | 9 | %
Total | 100 | % |  | 100 | % |  | 100 | %
_____________ * Includes immaterial amount of revenue accounted for under leasing arrangements.
Contract assets and deferred revenue | Cadence’s contract balances as of January 2, 2021 and December 28, 2019 were as follows:
| As of
| January 2, 2021 |  | December 28, 2019
| (In thousands)
Contract assets | $ | 9,709 |  |  | $ | 10,209 |
Deferred revenue | 553,921 |  |  | 428,883 |

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 + Details
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