XML 34 R42.htm IDEA: XBRL DOCUMENT v2.4.1.9
Goodwill and Purchased Intangible Assets, Net - Future Amortization Expense Related to Purchased Intangible Assets (Detail) (USD $)
In Millions, unless otherwise specified
Jan. 23, 2015
Apr. 25, 2014
Goodwill And Intangible Assets Disclosure [Abstract]    
Remainder of 2015 $ 15.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear  
2016 58.4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 13.9us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 9.4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 5.2us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Thereafter 2.6us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Net Assets $ 105.0us-gaap_FiniteLivedIntangibleAssetsNet $ 121.5us-gaap_FiniteLivedIntangibleAssetsNet