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Revenue (Tables) | 3 Months Ended
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Mar. 28, 2020
Revenue from Contract with Customer [Abstract] |
Revenue from external customers by product group | for the three months ended March 28, 2020 and March 30, 2019:
| Three Months Ended
| March 28, 2020 |  | March 30, 2019
Custom IC Design and Simulation | 25 | % |  | 25 | %
Digital IC Design and Signoff | 29 | % |  | 30 | %
Functional Verification, including Emulation and Prototyping Hardware* | 23 | % |  | 24 | %
IP | 14 | % |  | 12 | %
System Interconnect and Analysis | 9 | % |  | 9 | %
Total | 100 | % |  | 100 | %
_____________ * Includes immaterial amount of revenue accounted for under leasing arrangements.
Contract balances | Cadence’s contract balances as of March 28, 2020 and December 28, 2019 were as follows:
| As of
| March 28, 2020 |  | December 28, 2019
| (In thousands)
Contract assets | $ | 15,985 |  |  | $ | 10,209 |
Deferred revenue | 521,119 |  |  | 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=115929826&loc=d3e9031-108599 + Details
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