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Receivables, net (Details Textual) - Customer | Jul. 02, 2022 | Jan. 01, 2022
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Receivables [Abstract] |  |
Number of Customers with receivables balance greater than ten percent of total balance | 1 | 0
Percentage of receivables, net attributable to single customer | 11.00% | 10.00%

X
- Definition Number of customers with accounts receivable and installment contract receivable balance greater than ten percent of total balance. + References No definition available. + Details
Name: | cdns_NumberOfCustomersWithAccountsReceivableAndInstallmentContractReceivableBalanceGreaterThanTenPercentOfBalance
Namespace Prefix: | cdns_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of Company's receivables net and installment contract receivables net attributable to single customer. + References No definition available. + Details
Name: | cdns_PercentageOfCompanysReceivablesNetAndInstallmentContractReceivablesNetAttributableToSingleCustomer
Namespace Prefix: | cdns_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration