Receivables, net (Details Textual) - Customer	Jul. 02, 2022	Jan. 01, 2022
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%

Number of customers with accounts receivable and installment contract receivable balance greater than ten percent of total balance.

No definition available.

Name:	cdns_NumberOfCustomersWithAccountsReceivableAndInstallmentContractReceivableBalanceGreaterThanTenPercentOfBalance
Namespace Prefix:	cdns_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant