XML 57 R46.htm IDEA: XBRL DOCUMENT v3.5.0.2
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Jul. 30, 2016
Jul. 25, 2015
Income Taxes    
Effective tax rate (as a percent) 35.70% 35.90%
Statutory tax rate (as a percent) 35.00%  
Net liability for uncertain income tax positions $ 0.8