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Revenue (Tables) | 6 Months Ended
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Apr. 30, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | The following table shows the percentage of revenue by product groups:
| Three Months Ended April 30, |  | Six Months Ended April 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
EDA | 57.4 | % |  | 59.4 | % |  | 56.3 | % |  | 59.2 | %
IP & System Integration | 33.1 | % |  | 30.2 | % |  | 34.0 | % |  | 30.4 | %
Software Integrity Products & Services | 9.2 | % |  | 10.2 | % |  | 9.3 | % |  | 10.3 | %
Other | 0.3 | % |  | 0.2 | % |  | 0.4 | % |  | 0.1 | %
Total | 100.0 | % |  | 100.0 | % |  | 100.0 | % |  | 100.0 | %
Schedule of Contract Assets and Liabilities | Contract balances are as follows:
| As of
| April 30, 2021 |  | October 31, 2020
| (in thousands)
Contract assets | $ | 242,929 |  |  | $ | 214,583 |
Unbilled receivables | $ | 48,487 |  |  | $ | 50,932 |
Deferred revenue | $ | 1,680,311 |  |  | $ | 1,493,113 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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