XML 60 R48.htm IDEA: XBRL DOCUMENT v3.4.0.3
Income Taxes - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Apr. 30, 2016
May. 02, 2015
Jan. 30, 2016
Income Taxes [Line Items]      
Effective income tax rate 38.40% 38.00%  
Net unrecognized tax benefits $ 35,300,000 $ 33,700,000 $ 34,100,000
Accrued amounts for interest and penalties 7,400,000 $ 10,500,000 $ 7,000,000
Minimum      
Income Taxes [Line Items]      
Possible decrease in unrecognized tax benefits that would reduce the provision for taxes on earnings 0    
Maximum      
Income Taxes [Line Items]      
Possible decrease in unrecognized tax benefits that would reduce the provision for taxes on earnings $ 11,000,000