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Income Taxes - Projected Effective Tax Rate for Periods (Detail)
3 Months Ended 6 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Income Tax Disclosure [Abstract]        
Effective tax rates for income from continuing operations 37.00% 36.10% 32.70% 33.00%