XML 66 R51.htm IDEA: XBRL DOCUMENT v2.4.1.9
Restructuring and Other Charges (Details 1) (USD $)
In Thousands, unless otherwise specified
Apr. 04, 2015
Jan. 03, 2015
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve $ 6,535us-gaap_RestructuringReserve $ 6,210us-gaap_RestructuringReserve
Accounts payable and accrued liabilities [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve 6,008us-gaap_RestructuringReserve
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_AccountsPayableAndAccruedLiabilitiesMember
 
Other long-term liabilities [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve $ 527us-gaap_RestructuringReserve
/ us-gaap_BalanceSheetLocationAxis
= cdns_OtherLongTermLiabilitiesMember